23102031321 has 12 divisors (see below), whose sum is σ = 33373814448. Its totient is φ = 15399409464.

The previous prime is 23102031259. The next prime is 23102031331. The reversal of 23102031321 is 12313020132.

23102031321 is a `hidden beast` number, since 2 + 310 + 2 + 0 + 31 + 321 = 666.

It is not a de Polignac number, because 23102031321 - 2¹¹ = 23102029273 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23102031294 and 23102031303.

It is not an unprimeable number, because it can be changed into a prime (23102031331) 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, 84895 + ... + 231108.

It is an arithmetic number, because the mean of its divisors is an integer number (2781151204).

Almost surely, 2^23102031321 is an apocalyptic number.

It is an amenable number.

23102031321 is a deficient number, since it is larger than the sum of its proper divisors (10271783127).

23102031321 is a wasteful number, since it uses less digits than its factorization.

23102031321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324132 (or 324129 counting only the distinct ones).

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

Adding to 23102031321 its reverse (12313020132), we get a palindrome (35415051453).

The spelling of 23102031321 in words is "twenty-three billion, one hundred two million, thirty-one thousand, three hundred twenty-one".