31312122323 has 8 divisors (see below), whose sum is σ = 31408678080. Its totient is φ = 31215640680.

The previous prime is 31312122319. The next prime is 31312122383. The reversal of 31312122323 is 32322121313.

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

It is a cyclic number.

It is not a de Polignac number, because 31312122323 - 2² = 31312122319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31312122383) by changing a digit.

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, 896636 + ... + 930902.

It is an arithmetic number, because the mean of its divisors is an integer number (3926084760).

Almost surely, 2^31312122323 is an apocalyptic number.

31312122323 is a deficient number, since it is larger than the sum of its proper divisors (96555757).

31312122323 is a wasteful number, since it uses less digits than its factorization.

31312122323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37057.

The product of its digits is 1296, while the sum is 23.

Adding to 31312122323 its reverse (32322121313), we get a palindrome (63634243636).

The spelling of 31312122323 in words is "thirty-one billion, three hundred twelve million, one hundred twenty-two thousand, three hundred twenty-three".