30688868923 has 2 divisors, whose sum is σ = 30688868924. Its totient is φ = 30688868922.

The previous prime is 30688868909. The next prime is 30688868933. The reversal of 30688868923 is 32986888603.

It is a strong prime.

It is an emirp because it is prime and its reverse (32986888603) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30688868923 - 2⁵ = 30688868891 is a prime.

It is not a weakly prime, because it can be changed into another prime (30688868933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15344434461 + 15344434462.

It is an arithmetic number, because the mean of its divisors is an integer number (15344434462).

Almost surely, 2^30688868923 is an apocalyptic number.

30688868923 is a deficient number, since it is larger than the sum of its proper divisors (1).

30688868923 is an equidigital number, since it uses as much as digits as its factorization.

30688868923 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23887872, while the sum is 61.

The spelling of 30688868923 in words is "thirty billion, six hundred eighty-eight million, eight hundred sixty-eight thousand, nine hundred twenty-three".