31322213330313 has 4 divisors (see below), whose sum is σ = 41762951107088. Its totient is φ = 20881475553540.

The previous prime is 31322213330311. The next prime is 31322213330329. The reversal of 31322213330313 is 31303331222313.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 31322213330313 - 2¹ = 31322213330311 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31322213330311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5220368888383 + ... + 5220368888388.

It is an arithmetic number, because the mean of its divisors is an integer number (10440737776772).

Almost surely, 2^{31322213330313} is an apocalyptic number.

It is an amenable number.

31322213330313 is a deficient number, since it is larger than the sum of its proper divisors (10440737776775).

31322213330313 is a wasteful number, since it uses less digits than its factorization.

31322213330313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10440737776774.

The product of its (nonzero) digits is 17496, while the sum is 30.

Adding to 31322213330313 its reverse (31303331222313), we get a palindrome (62625544552626).

The spelling of 31322213330313 in words is "thirty-one trillion, three hundred twenty-two billion, two hundred thirteen million, three hundred thirty thousand, three hundred thirteen".