23131133311 has 24 divisors (see below), whose sum is σ = 28822046960. Its totient is φ = 18389099520.

The previous prime is 23131133297. The next prime is 23131133339. The reversal of 23131133311 is 11333113132.

It is not a de Polignac number, because 23131133311 - 2⁵ = 23131133279 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23131133341) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 357090 + ... + 416863.

Almost surely, 2^23131133311 is an apocalyptic number.

23131133311 is a deficient number, since it is larger than the sum of its proper divisors (5690913649).

23131133311 is a wasteful number, since it uses less digits than its factorization.

23131133311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 774007 (or 773996 counting only the distinct ones).

The product of its digits is 486, while the sum is 22.

Adding to 23131133311 its reverse (11333113132), we get a palindrome (34464246443).

The spelling of 23131133311 in words is "twenty-three billion, one hundred thirty-one million, one hundred thirty-three thousand, three hundred eleven".