23330131321 has 12 divisors (see below), whose sum is σ = 27651194532. Its totient is φ = 19619946528.

The previous prime is 23330131301. The next prime is 23330131333. The reversal of 23330131321 is 12313103332.

It can be written as a sum of positive squares in 2 ways, for example, as 18403635600 + 4926495721 = 135660^2 + 70189^2 .

It is not a de Polignac number, because 23330131321 - 2⁷ = 23330131193 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23330131292 and 23330131301.

It is not an unprimeable number, because it can be changed into a prime (23330131301) 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, 4489150 + ... + 4494343.

It is an arithmetic number, because the mean of its divisors is an integer number (2304266211).

Almost surely, 2^23330131321 is an apocalyptic number.

It is an amenable number.

23330131321 is a deficient number, since it is larger than the sum of its proper divisors (4321063211).

23330131321 is an equidigital number, since it uses as much as digits as its factorization.

23330131321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8983560 (or 8983553 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 23330131321 its reverse (12313103332), we get a palindrome (35643234653).

The spelling of 23330131321 in words is "twenty-three billion, three hundred thirty million, one hundred thirty-one thousand, three hundred twenty-one".