31321000322 has 8 divisors (see below), whose sum is σ = 47397266316. Its totient is φ = 15521911552.

The previous prime is 31321000313. The next prime is 31321000331. The reversal of 31321000322 is 22300012313.

It is an interprime number because it is at equal distance from previous prime (31321000313) and next prime (31321000331).

It can be written as a sum of positive squares in 2 ways, for example, as 27258340201 + 4062660121 = 165101^2 + 63739^2 .

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

It is a super-2 number, since 2×31321000322² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 31321000322.

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, 69294023 + ... + 69294474.

Almost surely, 2^31321000322 is an apocalyptic number.

31321000322 is a deficient number, since it is larger than the sum of its proper divisors (16076265994).

31321000322 is a wasteful number, since it uses less digits than its factorization.

31321000322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138588612.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 31321000322 its reverse (22300012313), we get a palindrome (53621012635).

The spelling of 31321000322 in words is "thirty-one billion, three hundred twenty-one million, three hundred twenty-two", and thus it is an aban number.