23113122013 has 2 divisors, whose sum is σ = 23113122014. Its totient is φ = 23113122012.

The previous prime is 23113122007. The next prime is 23113122023. The reversal of 23113122013 is 31022131132.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22348157049 + 764964964 = 149493^2 + 27658^2 .

It is a cyclic number.

It is not a de Polignac number, because 23113122013 - 2¹⁷ = 23112990941 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23113122023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11556561006 + 11556561007.

It is an arithmetic number, because the mean of its divisors is an integer number (11556561007).

Almost surely, 2^23113122013 is an apocalyptic number.

It is an amenable number.

23113122013 is a deficient number, since it is larger than the sum of its proper divisors (1).

23113122013 is an equidigital number, since it uses as much as digits as its factorization.

23113122013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 23113122013 its reverse (31022131132), we get a palindrome (54135253145).

The spelling of 23113122013 in words is "twenty-three billion, one hundred thirteen million, one hundred twenty-two thousand, thirteen".