31321000022 has 16 divisors (see below), whose sum is σ = 53571665952. Its totient is φ = 13605502080.

The previous prime is 31321000003. The next prime is 31321000031. The reversal of 31321000022 is 22000012313.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 31320999970 and 31321000006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35430554 + ... + 35431437.

It is an arithmetic number, because the mean of its divisors is an integer number (3348229122).

Almost surely, 2^31321000022 is an apocalyptic number.

31321000022 is a deficient number, since it is larger than the sum of its proper divisors (22250665930).

31321000022 is a wasteful number, since it uses less digits than its factorization.

31321000022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70862023.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 31321000022 its reverse (22000012313), we get a palindrome (53321012335).

The spelling of 31321000022 in words is "thirty-one billion, three hundred twenty-one million, twenty-two", and thus it is an aban number.