Search a number
-
+
12311223101 = 113227479951
BaseRepresentation
bin10110111011100111…
…00101101100111101
31011202222201221011222
423131303211230331
5200203133114401
65353344123125
7614040445502
oct133563455475
934688657158
1012311223101
115248401151
1224770064a5
131212791ac8
1484b0b34a9
154c0c49c1b
hex2ddce5b3d

12311223101 has 8 divisors (see below), whose sum is σ = 12474912384. Its totient is φ = 12148494400.

The previous prime is 12311223091. The next prime is 12311223103. The reversal of 12311223101 is 10132211321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12311223101 - 214 = 12311206717 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12311223101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12311223103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 214325 + ... + 265626.

It is an arithmetic number, because the mean of its divisors is an integer number (1559364048).

Almost surely, 212311223101 is an apocalyptic number.

It is an amenable number.

12311223101 is a deficient number, since it is larger than the sum of its proper divisors (163689283).

12311223101 is a wasteful number, since it uses less digits than its factorization.

12311223101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 480291.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 12311223101 its reverse (10132211321), we get a palindrome (22443434422).

The spelling of 12311223101 in words is "twelve billion, three hundred eleven million, two hundred twenty-three thousand, one hundred one".

Divisors: 1 113 227 25651 479951 54234463 108948877 12311223101