23131113033 has 32 divisors (see below), whose sum is σ = 35390324736. Its totient is φ = 13164294528.

The previous prime is 23131113001. The next prime is 23131113037. The reversal of 23131113033 is 33031113132.

It is not a de Polignac number, because 23131113033 - 2⁵ = 23131113001 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (23131113037) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7100341 + ... + 7103597.

It is an arithmetic number, because the mean of its divisors is an integer number (1105947648).

Almost surely, 2^23131113033 is an apocalyptic number.

It is an amenable number.

23131113033 is a deficient number, since it is larger than the sum of its proper divisors (12259211703).

23131113033 is a wasteful number, since it uses less digits than its factorization.

23131113033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4533.

The product of its (nonzero) digits is 486, while the sum is 21.

Adding to 23131113033 its reverse (33031113132), we get a palindrome (56162226165).

Subtracting 23131113033 from its reverse (33031113132), we obtain a palindrome (9900000099).

The spelling of 23131113033 in words is "twenty-three billion, one hundred thirty-one million, one hundred thirteen thousand, thirty-three".