31213110422 has 8 divisors (see below), whose sum is σ = 50421178416. Its totient is φ = 14406050952.

The previous prime is 31213110419. The next prime is 31213110433. The reversal of 31213110422 is 22401131213.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 31213110394 and 31213110403.

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, 600252098 + ... + 600252149.

It is an arithmetic number, because the mean of its divisors is an integer number (6302647302).

Almost surely, 2^31213110422 is an apocalyptic number.

31213110422 is a deficient number, since it is larger than the sum of its proper divisors (19208067994).

31213110422 is a wasteful number, since it uses less digits than its factorization.

31213110422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1200504262.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 31213110422 its reverse (22401131213), we get a palindrome (53614241635).

The spelling of 31213110422 in words is "thirty-one billion, two hundred thirteen million, one hundred ten thousand, four hundred twenty-two".