23311042013 has 16 divisors (see below), whose sum is σ = 27137228160. Its totient is φ = 19609978176.

The previous prime is 23311042003. The next prime is 23311042019. The reversal of 23311042013 is 31024011332.

It is a cyclic number.

It is not a de Polignac number, because 23311042013 - 2⁴ = 23311041997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23311042019) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 207131 + ... + 299207.

It is an arithmetic number, because the mean of its divisors is an integer number (1696076760).

Almost surely, 2^23311042013 is an apocalyptic number.

It is an amenable number.

23311042013 is a deficient number, since it is larger than the sum of its proper divisors (3826186147).

23311042013 is an equidigital number, since it uses as much as digits as its factorization.

23311042013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92756.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 23311042013 its reverse (31024011332), we get a palindrome (54335053345).

The spelling of 23311042013 in words is "twenty-three billion, three hundred eleven million, forty-two thousand, thirteen".