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23132231111220 = 22357115006976431
BaseRepresentation
bin1010100001001111001000…
…11010110001001000110100
310000220102022221220012221120
411100213210122301020310
511012444302131024340
6121110444505143540
74605151152126540
oct520474432611064
9100812287805846
1023132231111220
117409362451810
12271722148abb0
13cba48acc07ca
1459d86aa78a20
152a1ac82534d0
hex1509e46b1234

23132231111220 has 96 divisors (see below), whose sum is σ = 80752515895296. Its totient is φ = 4806697372800.

The previous prime is 23132231111203. The next prime is 23132231111233. The reversal of 23132231111220 is 2211113223132.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2503483596 + ... + 2503492835.

It is an arithmetic number, because the mean of its divisors is an integer number (841172040576).

Almost surely, 223132231111220 is an apocalyptic number.

23132231111220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23132231111220 is an abundant number, since it is smaller than the sum of its proper divisors (57620284784076).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23132231111220 is a wasteful number, since it uses less digits than its factorization.

23132231111220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5006976461 (or 5006976459 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 23132231111220 its reverse (2211113223132), we get a palindrome (25343344334352).

The spelling of 23132231111220 in words is "twenty-three trillion, one hundred thirty-two billion, two hundred thirty-one million, one hundred eleven thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 7 10 11 12 14 15 20 21 22 28 30 33 35 42 44 55 60 66 70 77 84 105 110 132 140 154 165 210 220 231 308 330 385 420 462 660 770 924 1155 1540 2310 4620 5006976431 10013952862 15020929293 20027905724 25034882155 30041858586 35048835017 50069764310 55076740741 60083717172 70097670034 75104646465 100139528620 105146505051 110153481482 140195340068 150209292930 165230222223 175244175085 210293010102 220306962964 275383703705 300418585860 330460444446 350488350170 385537185187 420586020204 525732525255 550767407410 660920888892 700976700340 771074370374 826151111115 1051465050510 1101534814820 1156611555561 1542148740748 1652302222230 1927685925935 2102930101020 2313223111122 3304604444460 3855371851870 4626446222244 5783057777805 7710743703740 11566115555610 23132231111220