23328728971 has 2 divisors, whose sum is σ = 23328728972. Its totient is φ = 23328728970.

The previous prime is 23328728959. The next prime is 23328729001. The reversal of 23328728971 is 17982782332.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23328728971 - 2²⁷ = 23194511243 is a prime.

It is not a weakly prime, because it can be changed into another prime (23328798971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11664364485 + 11664364486.

It is an arithmetic number, because the mean of its divisors is an integer number (11664364486).

Almost surely, 2^23328728971 is an apocalyptic number.

23328728971 is a deficient number, since it is larger than the sum of its proper divisors (1).

23328728971 is an equidigital number, since it uses as much as digits as its factorization.

23328728971 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2032128, while the sum is 52.

The spelling of 23328728971 in words is "twenty-three billion, three hundred twenty-eight million, seven hundred twenty-eight thousand, nine hundred seventy-one".