231024031131 has 8 divisors (see below), whose sum is σ = 317968559104. Its totient is φ = 149047761960.

The previous prime is 231024031123. The next prime is 231024031157. The reversal of 231024031131 is 131130420132.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 231024031131 - 2³ = 231024031123 is a prime.

It is a super-2 number, since 2×231024031131² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 231024031098 and 231024031107.

It is not an unprimeable number, because it can be changed into a prime (231024031111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1242064591 + ... + 1242064776.

It is an arithmetic number, because the mean of its divisors is an integer number (39746069888).

Almost surely, 2^231024031131 is an apocalyptic number.

231024031131 is a deficient number, since it is larger than the sum of its proper divisors (86944527973).

231024031131 is a wasteful number, since it uses less digits than its factorization.

231024031131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2484129401.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 231024031131 its reverse (131130420132), we get a palindrome (362154451263).

The spelling of 231024031131 in words is "two hundred thirty-one billion, twenty-four million, thirty-one thousand, one hundred thirty-one".