231474263081 has 2 divisors, whose sum is σ = 231474263082. Its totient is φ = 231474263080.

The previous prime is 231474263051. The next prime is 231474263171. The reversal of 231474263081 is 180362474132.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 230096739856 + 1377523225 = 479684^2 + 37115^2 .

It is a cyclic number.

It is not a de Polignac number, because 231474263081 - 2¹⁰ = 231474262057 is a prime.

It is a super-2 number, since 2×231474263081² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (231474263051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115737131540 + 115737131541.

It is an arithmetic number, because the mean of its divisors is an integer number (115737131541).

Almost surely, 2^231474263081 is an apocalyptic number.

It is an amenable number.

231474263081 is a deficient number, since it is larger than the sum of its proper divisors (1).

231474263081 is an equidigital number, since it uses as much as digits as its factorization.

231474263081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 193536, while the sum is 41.

The spelling of 231474263081 in words is "two hundred thirty-one billion, four hundred seventy-four million, two hundred sixty-three thousand, eighty-one".