31132013323232 has 24 divisors (see below), whose sum is σ = 61291493260200. Its totient is φ = 15565919796864.

The previous prime is 31132013323199. The next prime is 31132013323237. The reversal of 31132013323232 is 23232331023113.

It is a junction number, because it is equal to n+sod(n) for n = 31132013323195 and 31132013323204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31132013323237) 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, 3315494 + ... + 8559002.

It is an arithmetic number, because the mean of its divisors is an integer number (2553812219175).

Almost surely, 2^{31132013323232} is an apocalyptic number.

31132013323232 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

31132013323232 is a deficient number, since it is larger than the sum of its proper divisors (30159479936968).

31132013323232 is a wasteful number, since it uses less digits than its factorization.

31132013323232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5429058 (or 5429050 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 29.

Adding to 31132013323232 its reverse (23232331023113), we get a palindrome (54364344346345).

The spelling of 31132013323232 in words is "thirty-one trillion, one hundred thirty-two billion, thirteen million, three hundred twenty-three thousand, two hundred thirty-two".