231552500451971 has 2 divisors, whose sum is σ = 231552500451972. Its totient is φ = 231552500451970.

The previous prime is 231552500451941. The next prime is 231552500452033. The reversal of 231552500451971 is 179154005255132.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 231552500451971 - 2³⁰ = 231551426710147 is a prime.

It is not a weakly prime, because it can be changed into another prime (231552500451931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115776250225985 + 115776250225986.

It is an arithmetic number, because the mean of its divisors is an integer number (115776250225986).

Almost surely, 2^{231552500451971} is an apocalyptic number.

231552500451971 is a deficient number, since it is larger than the sum of its proper divisors (1).

231552500451971 is an equidigital number, since it uses as much as digits as its factorization.

231552500451971 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1890000, while the sum is 50.

The spelling of 231552500451971 in words is "two hundred thirty-one trillion, five hundred fifty-two billion, five hundred million, four hundred fifty-one thousand, nine hundred seventy-one".