23109130813 has 2 divisors, whose sum is σ = 23109130814. Its totient is φ = 23109130812.

The previous prime is 23109130799. The next prime is 23109130831. The reversal of 23109130813 is 31803190132.

Together with next prime (23109130831) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11936218009 + 11172912804 = 109253^2 + 105702^2 .

It is a cyclic number.

It is not a de Polignac number, because 23109130813 - 2³³ = 14519196221 is a prime.

It is a super-3 number, since 3×23109130813³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23109130873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11554565406 + 11554565407.

It is an arithmetic number, because the mean of its divisors is an integer number (11554565407).

Almost surely, 2^23109130813 is an apocalyptic number.

It is an amenable number.

23109130813 is a deficient number, since it is larger than the sum of its proper divisors (1).

23109130813 is an equidigital number, since it uses as much as digits as its factorization.

23109130813 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 31.

The spelling of 23109130813 in words is "twenty-three billion, one hundred nine million, one hundred thirty thousand, eight hundred thirteen".