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23201131120 = 245920331513
BaseRepresentation
bin10101100110111001…
…010010101001110000
32012212221000120121121
4111212321102221300
5340003442143440
614354120432024
71450642234456
oct254671225160
965787016547
1023201131120
119926485232
1245b6018614
13225995126b
1411a14c69d6
1590bcde34a
hex566e52a70

23201131120 has 40 divisors (see below), whose sum is σ = 53950203216. Its totient is φ = 9279149568.

The previous prime is 23201131103. The next prime is 23201131133. The reversal of 23201131120 is 2113110232.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 23201131094 and 23201131103.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 720484 + ... + 751996.

Almost surely, 223201131120 is an apocalyptic number.

23201131120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23201131120 is an abundant number, since it is smaller than the sum of its proper divisors (30749072096).

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

23201131120 is a wasteful number, since it uses less digits than its factorization.

23201131120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40729 (or 40723 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 23201131120 its reverse (2113110232), we get a palindrome (25314241352).

The spelling of 23201131120 in words is "twenty-three billion, two hundred one million, one hundred thirty-one thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 40 80 9203 18406 31513 36812 46015 63026 73624 92030 126052 147248 157565 184060 252104 315130 368120 504208 630260 736240 1260520 2521040 290014139 580028278 1160056556 1450070695 2320113112 2900141390 4640226224 5800282780 11600565560 23201131120