23109788813 has 2 divisors, whose sum is σ = 23109788814. Its totient is φ = 23109788812.

The previous prime is 23109788761. The next prime is 23109788827. The reversal of 23109788813 is 31888790132.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21444087844 + 1665700969 = 146438^2 + 40813^2 .

It is a cyclic number.

It is not a de Polignac number, because 23109788813 - 2²⁶ = 23042679949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23109788833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11554894406 + 11554894407.

It is an arithmetic number, because the mean of its divisors is an integer number (11554894407).

Almost surely, 2^23109788813 is an apocalyptic number.

It is an amenable number.

23109788813 is a deficient number, since it is larger than the sum of its proper divisors (1).

23109788813 is an equidigital number, since it uses as much as digits as its factorization.

23109788813 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 580608, while the sum is 50.

The spelling of 23109788813 in words is "twenty-three billion, one hundred nine million, seven hundred eighty-eight thousand, eight hundred thirteen".