23109310019 has 2 divisors, whose sum is σ = 23109310020. Its totient is φ = 23109310018.

The previous prime is 23109309991. The next prime is 23109310117. The reversal of 23109310019 is 91001390132.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23109310019 is a prime.

It is a super-2 number, since 2×23109310019² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 23109309973 and 23109310000.

It is not a weakly prime, because it can be changed into another prime (23109310619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11554655009 + 11554655010.

It is an arithmetic number, because the mean of its divisors is an integer number (11554655010).

Almost surely, 2^23109310019 is an apocalyptic number.

23109310019 is a deficient number, since it is larger than the sum of its proper divisors (1).

23109310019 is an equidigital number, since it uses as much as digits as its factorization.

23109310019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1458, while the sum is 29.

The spelling of 23109310019 in words is "twenty-three billion, one hundred nine million, three hundred ten thousand, nineteen".