23131023322 has 12 divisors (see below), whose sum is σ = 38137514058. Its totient is φ = 10514101400.

The previous prime is 23131023319. The next prime is 23131023323. The reversal of 23131023322 is 22332013132.

It can be written as a sum of positive squares in only one way, i.e., 13135222881 + 9995800441 = 114609^2 + 99979^2 .

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 23131023293 and 23131023302.

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 5 ways as a sum of consecutive naturals, for example, 47791129 + ... + 47791612.

Almost surely, 2^23131023322 is an apocalyptic number.

23131023322 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

23131023322 is a deficient number, since it is larger than the sum of its proper divisors (15006490736).

23131023322 is a wasteful number, since it uses less digits than its factorization.

23131023322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95582765 (or 95582754 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 23131023322 its reverse (22332013132), we get a palindrome (45463036454).

The spelling of 23131023322 in words is "twenty-three billion, one hundred thirty-one million, twenty-three thousand, three hundred twenty-two".