31311323322 has 16 divisors (see below), whose sum is σ = 62624551872. Its totient is φ = 10436790240.

The previous prime is 31311323317. The next prime is 31311323339. The reversal of 31311323322 is 22332311313.

It is a super-2 number, since 2×31311323322² (a number of 22 digits) contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 31311323292 and 31311323301.

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 7 ways as a sum of consecutive naturals, for example, 222678 + ... + 334974.

It is an arithmetic number, because the mean of its divisors is an integer number (3914034492).

Almost surely, 2^31311323322 is an apocalyptic number.

31311323322 is an abundant number, since it is smaller than the sum of its proper divisors (31313228550).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31311323322 is a wasteful number, since it uses less digits than its factorization.

31311323322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158773.

The product of its digits is 1944, while the sum is 24.

Adding to 31311323322 its reverse (22332311313), we get a palindrome (53643634635).

The spelling of 31311323322 in words is "thirty-one billion, three hundred eleven million, three hundred twenty-three thousand, three hundred twenty-two".