31020421322 has 96 divisors (see below), whose sum is σ = 55731787776. Its totient is φ = 12831436800.

The previous prime is 31020421291. The next prime is 31020421337. The reversal of 31020421322 is 22312402013.

It is a junction number, because it is equal to n+sod(n) for n = 31020421294 and 31020421303.

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 47 ways as a sum of consecutive naturals, for example, 33105638 + ... + 33106574.

It is an arithmetic number, because the mean of its divisors is an integer number (580539456).

Almost surely, 2^31020421322 is an apocalyptic number.

31020421322 is a deficient number, since it is larger than the sum of its proper divisors (24711366454).

31020421322 is a wasteful number, since it uses less digits than its factorization.

31020421322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1152 (or 1135 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 31020421322 its reverse (22312402013), we get a palindrome (53332823335).

The spelling of 31020421322 in words is "thirty-one billion, twenty million, four hundred twenty-one thousand, three hundred twenty-two".