23131023321 has 8 divisors (see below), whose sum is σ = 35247273664. Its totient is φ = 13217727600.

The previous prime is 23131023319. The next prime is 23131023323. The reversal of 23131023321 is 12332013132.

It is an interprime number because it is at equal distance from previous prime (23131023319) and next prime (23131023323).

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

It is not a de Polignac number, because 23131023321 - 2¹ = 23131023319 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 1101477301 = 23131023321 / (2 + 3 + 1 + 3 + 1 + 0 + 2 + 3 + 3 + 2 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23131023323) 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, 550738630 + ... + 550738671.

It is an arithmetic number, because the mean of its divisors is an integer number (4405909208).

Almost surely, 2^23131023321 is an apocalyptic number.

23131023321 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

23131023321 is a deficient number, since it is larger than the sum of its proper divisors (12116250343).

23131023321 is a wasteful number, since it uses less digits than its factorization.

23131023321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1101477311.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 23131023321 its reverse (12332013132), we get a palindrome (35463036453).

The spelling of 23131023321 in words is "twenty-three billion, one hundred thirty-one million, twenty-three thousand, three hundred twenty-one".