31020223322 has 12 divisors (see below), whose sum is σ = 51144914058. Its totient is φ = 14100101400.

The previous prime is 31020223319. The next prime is 31020223337. The reversal of 31020223322 is 22332202013.

It can be written as a sum of positive squares in only one way, i.e., 29036500801 + 1983722521 = 170401^2 + 44539^2 .

It is a junction number, because it is equal to n+sod(n) for n = 31020223294 and 31020223303.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 64091129 + ... + 64091612.

Almost surely, 2^31020223322 is an apocalyptic number.

31020223322 is a deficient number, since it is larger than the sum of its proper divisors (20124690736).

31020223322 is a wasteful number, since it uses less digits than its factorization.

31020223322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128182765 (or 128182754 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 31020223322 its reverse (22332202013), we get a palindrome (53352425335).

The spelling of 31020223322 in words is "thirty-one billion, twenty million, two hundred twenty-three thousand, three hundred twenty-two".