31134123231 has 16 divisors (see below), whose sum is σ = 41663880960. Its totient is φ = 20680283520.

The previous prime is 31134123227. The next prime is 31134123239. The reversal of 31134123231 is 13232143113.

It is not a de Polignac number, because 31134123231 - 2² = 31134123227 is a prime.

It is a super-2 number, since 2×31134123231² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31134123239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2637300 + ... + 2649078.

It is an arithmetic number, because the mean of its divisors is an integer number (2603992560).

Almost surely, 2^31134123231 is an apocalyptic number.

31134123231 is a deficient number, since it is larger than the sum of its proper divisors (10529757729).

31134123231 is a wasteful number, since it uses less digits than its factorization.

31134123231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14926.

The product of its digits is 1296, while the sum is 24.

Adding to 31134123231 its reverse (13232143113), we get a palindrome (44366266344).

The spelling of 31134123231 in words is "thirty-one billion, one hundred thirty-four million, one hundred twenty-three thousand, two hundred thirty-one".