31113231332 has 12 divisors (see below), whose sum is σ = 54476719920. Its totient is φ = 15548454216.

The previous prime is 31113231319. The next prime is 31113231361. The reversal of 31113231332 is 23313231113.

It is a junction number, because it is equal to n+sod(n) for n = 31113231298 and 31113231307.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 2031782 + ... + 2047037.

It is an arithmetic number, because the mean of its divisors is an integer number (4539726660).

Almost surely, 2^31113231332 is an apocalyptic number.

It is an amenable number.

31113231332 is a deficient number, since it is larger than the sum of its proper divisors (23363488588).

31113231332 is a wasteful number, since it uses less digits than its factorization.

31113231332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4080730 (or 4080728 counting only the distinct ones).

The product of its digits is 972, while the sum is 23.

Adding to 31113231332 its reverse (23313231113), we get a palindrome (54426462445).

The spelling of 31113231332 in words is "thirty-one billion, one hundred thirteen million, two hundred thirty-one thousand, three hundred thirty-two".