23231123130321 has 6 divisors (see below), whose sum is σ = 33556066743810. Its totient is φ = 15487415420208.

The previous prime is 23231123130277. The next prime is 23231123130361. The reversal of 23231123130321 is 12303132113232.

23231123130321 is a `hidden beast` number, since 2 + 3 + 2 + 311 + 2 + 313 + 0 + 32 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 15242473113921 + 7988650016400 = 3904161^2 + 2826420^2 .

It is a de Polignac number, because none of the positive numbers 2^k-23231123130321 is a prime.

It is a super-2 number, since 2×23231123130321² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23231123130361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1290617951676 + ... + 1290617951693.

It is an arithmetic number, because the mean of its divisors is an integer number (5592677790635).

Almost surely, 2^{23231123130321} is an apocalyptic number.

It is an amenable number.

23231123130321 is a deficient number, since it is larger than the sum of its proper divisors (10324943613489).

23231123130321 is a wasteful number, since it uses less digits than its factorization.

23231123130321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2581235903375 (or 2581235903372 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

Adding to 23231123130321 its reverse (12303132113232), we get a palindrome (35534255243553).

The spelling of 23231123130321 in words is "twenty-three trillion, two hundred thirty-one billion, one hundred twenty-three million, one hundred thirty thousand, three hundred twenty-one".