31223112422 has 16 divisors (see below), whose sum is σ = 47735114400. Its totient is φ = 15312834240.

The previous prime is 31223112419. The next prime is 31223112439. The reversal of 31223112422 is 22421132213.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 312647 + ... + 400242.

It is an arithmetic number, because the mean of its divisors is an integer number (2983444650).

Almost surely, 2^31223112422 is an apocalyptic number.

31223112422 is a deficient number, since it is larger than the sum of its proper divisors (16512001978).

31223112422 is a wasteful number, since it uses less digits than its factorization.

31223112422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 713311.

The product of its digits is 1152, while the sum is 23.

Adding to 31223112422 its reverse (22421132213), we get a palindrome (53644244635).

The spelling of 31223112422 in words is "thirty-one billion, two hundred twenty-three million, one hundred twelve thousand, four hundred twenty-two".