23120310321 has 12 divisors (see below), whose sum is σ = 33520156020. Its totient is φ = 15356239200.

The previous prime is 23120310319. The next prime is 23120310371. The reversal of 23120310321 is 12301302132.

23120310321 is a `hidden beast` number, since 2 + 31 + 2 + 0 + 310 + 321 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 6873239025 + 16247071296 = 82905^2 + 127464^2 .

It is not a de Polignac number, because 23120310321 - 2¹ = 23120310319 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23120310294 and 23120310303.

It is not an unprimeable number, because it can be changed into a prime (23120310371) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4772530 + ... + 4777371.

It is an arithmetic number, because the mean of its divisors is an integer number (2793346335).

Almost surely, 2^23120310321 is an apocalyptic number.

It is an amenable number.

23120310321 is a deficient number, since it is larger than the sum of its proper divisors (10399845699).

23120310321 is a wasteful number, since it uses less digits than its factorization.

23120310321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9550176 (or 9550173 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 23120310321 its reverse (12301302132), we get a palindrome (35421612453).

The spelling of 23120310321 in words is "twenty-three billion, one hundred twenty million, three hundred ten thousand, three hundred twenty-one".