23261913907 has 2 divisors, whose sum is σ = 23261913908. Its totient is φ = 23261913906.

The previous prime is 23261913901. The next prime is 23261913923. The reversal of 23261913907 is 70931916232.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23261913907 is a prime.

It is a super-2 number, since 2×23261913907² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (23261913901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11630956953 + 11630956954.

It is an arithmetic number, because the mean of its divisors is an integer number (11630956954).

Almost surely, 2^23261913907 is an apocalyptic number.

23261913907 is a deficient number, since it is larger than the sum of its proper divisors (1).

23261913907 is an equidigital number, since it uses as much as digits as its factorization.

23261913907 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 122472, while the sum is 43.

The spelling of 23261913907 in words is "twenty-three billion, two hundred sixty-one million, nine hundred thirteen thousand, nine hundred seven".