231256462071 has 4 divisors (see below), whose sum is σ = 308341949432. Its totient is φ = 154170974712.

The previous prime is 231256462067. The next prime is 231256462109. The reversal of 231256462071 is 170264652132.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 231256462071 - 2² = 231256462067 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231256472071) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38542743676 + ... + 38542743681.

It is an arithmetic number, because the mean of its divisors is an integer number (77085487358).

Almost surely, 2^231256462071 is an apocalyptic number.

231256462071 is a deficient number, since it is larger than the sum of its proper divisors (77085487361).

231256462071 is an equidigital number, since it uses as much as digits as its factorization.

231256462071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77085487360.

The product of its (nonzero) digits is 120960, while the sum is 39.

The spelling of 231256462071 in words is "two hundred thirty-one billion, two hundred fifty-six million, four hundred sixty-two thousand, seventy-one".