231001042131 has 16 divisors (see below), whose sum is σ = 345612124320. Its totient is φ = 152475933600.

The previous prime is 231001042093. The next prime is 231001042141. The reversal of 231001042131 is 131240100132.

231001042131 is a `hidden beast` number, since 231 + 0 + 0 + 10 + 421 + 3 + 1 = 666.

It is not a de Polignac number, because 231001042131 - 2⁶ = 231001042067 is a prime.

It is a super-2 number, since 2×231001042131² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (231001042141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42351700 + ... + 42357153.

It is an arithmetic number, because the mean of its divisors is an integer number (21600757770).

Almost surely, 2^231001042131 is an apocalyptic number.

231001042131 is a deficient number, since it is larger than the sum of its proper divisors (114611082189).

231001042131 is a wasteful number, since it uses less digits than its factorization.

231001042131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84708963 (or 84708957 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 231001042131 its reverse (131240100132), we get a palindrome (362241142263).

The spelling of 231001042131 in words is "two hundred thirty-one billion, one million, forty-two thousand, one hundred thirty-one".