231142632651 has 24 divisors (see below), whose sum is σ = 382365434880. Its totient is φ = 131805742896.

The previous prime is 231142632629. The next prime is 231142632691. The reversal of 231142632651 is 156236241132.

231142632651 is a `hidden beast` number, since 2 + 3 + 1 + 14 + 2 + 632 + 6 + 5 + 1 = 666.

It is not a de Polignac number, because 231142632651 - 2⁵ = 231142632619 is a prime.

It is not an unprimeable number, because it can be changed into a prime (231142632691) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3799605 + ... + 3859958.

It is an arithmetic number, because the mean of its divisors is an integer number (15931893120).

Almost surely, 2^231142632651 is an apocalyptic number.

231142632651 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

231142632651 is a deficient number, since it is larger than the sum of its proper divisors (151222802229).

231142632651 is a wasteful number, since it uses less digits than its factorization.

231142632651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7660055 (or 7660052 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

Adding to 231142632651 its reverse (156236241132), we get a palindrome (387378873783).

The spelling of 231142632651 in words is "two hundred thirty-one billion, one hundred forty-two million, six hundred thirty-two thousand, six hundred fifty-one".