23210000993 has 2 divisors, whose sum is σ = 23210000994. Its totient is φ = 23210000992.

The previous prime is 23210000953. The next prime is 23210001013. The reversal of 23210000993 is 39900001232.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23011979809 + 198021184 = 151697^2 + 14072^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23210000993 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (23210000923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11605000496 + 11605000497.

It is an arithmetic number, because the mean of its divisors is an integer number (11605000497).

Almost surely, 2^23210000993 is an apocalyptic number.

It is an amenable number.

23210000993 is a deficient number, since it is larger than the sum of its proper divisors (1).

23210000993 is an equidigital number, since it uses as much as digits as its factorization.

23210000993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2916, while the sum is 29.

The spelling of 23210000993 in words is "twenty-three billion, two hundred ten million, nine hundred ninety-three", and thus it is an aban number.