31303321001332 has 12 divisors (see below), whose sum is σ = 54780955580736. Its totient is φ = 15651619406840.

The previous prime is 31303321001321. The next prime is 31303321001341. The reversal of 31303321001332 is 23310012330313.

It is a junction number, because it is equal to n+sod(n) for n = 31303321001297 and 31303321001306.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8526508 + ... + 11632195.

It is an arithmetic number, because the mean of its divisors is an integer number (4565079631728).

Almost surely, 2^{31303321001332} is an apocalyptic number.

It is an amenable number.

31303321001332 is a deficient number, since it is larger than the sum of its proper divisors (23477634579404).

31303321001332 is a wasteful number, since it uses less digits than its factorization.

31303321001332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20546918 (or 20546916 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 25.

Adding to 31303321001332 its reverse (23310012330313), we get a palindrome (54613333331645).

The spelling of 31303321001332 in words is "thirty-one trillion, three hundred three billion, three hundred twenty-one million, one thousand, three hundred thirty-two".