23210320031 has 16 divisors (see below), whose sum is σ = 25417202688. Its totient is φ = 21099657600.

The previous prime is 23210320019. The next prime is 23210320037. The reversal of 23210320031 is 13002301232.

It is a cyclic number.

It is not a de Polignac number, because 23210320031 - 2¹⁸ = 23210057887 is a prime.

It is a super-2 number, since 2×23210320031² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23210319991 and 23210320009.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23210320037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 233516 + ... + 317726.

It is an arithmetic number, because the mean of its divisors is an integer number (1588575168).

Almost surely, 2^23210320031 is an apocalyptic number.

23210320031 is a deficient number, since it is larger than the sum of its proper divisors (2206882657).

23210320031 is a wasteful number, since it uses less digits than its factorization.

23210320031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84782.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 23210320031 its reverse (13002301232), we get a palindrome (36212621263).

The spelling of 23210320031 in words is "twenty-three billion, two hundred ten million, three hundred twenty thousand, thirty-one".