23131130111 has 2 divisors, whose sum is σ = 23131130112. Its totient is φ = 23131130110.

The previous prime is 23131130083. The next prime is 23131130131. The reversal of 23131130111 is 11103113132.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23131130111 - 2⁶ = 23131130047 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23131130111.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23131130131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11565565055 + 11565565056.

It is an arithmetic number, because the mean of its divisors is an integer number (11565565056).

Almost surely, 2^23131130111 is an apocalyptic number.

23131130111 is a deficient number, since it is larger than the sum of its proper divisors (1).

23131130111 is an equidigital number, since it uses as much as digits as its factorization.

23131130111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54, while the sum is 17.

Adding to 23131130111 its reverse (11103113132), we get a palindrome (34234243243).

The spelling of 23131130111 in words is "twenty-three billion, one hundred thirty-one million, one hundred thirty thousand, one hundred eleven".