31132212322 has 16 divisors (see below), whose sum is σ = 47232014400. Its totient is φ = 15389204688.

The previous prime is 31132212289. The next prime is 31132212337. The reversal of 31132212322 is 22321223113.

It is a junction number, because it is equal to n+sod(n) for n = 31132212293 and 31132212302.

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 7 ways as a sum of consecutive naturals, for example, 186628 + ... + 311599.

It is an arithmetic number, because the mean of its divisors is an integer number (2952000900).

Almost surely, 2^31132212322 is an apocalyptic number.

31132212322 is a deficient number, since it is larger than the sum of its proper divisors (16099802078).

31132212322 is a wasteful number, since it uses less digits than its factorization.

31132212322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 498585.

The product of its digits is 864, while the sum is 22.

Adding to 31132212322 its reverse (22321223113), we get a palindrome (53453435435).

The spelling of 31132212322 in words is "thirty-one billion, one hundred thirty-two million, two hundred twelve thousand, three hundred twenty-two".