31311313120322 has 32 divisors (see below), whose sum is σ = 51609519360000. Its totient is φ = 14181020610768.

The previous prime is 31311313120309. The next prime is 31311313120333. The reversal of 31311313120322 is 22302131311313.

It is a junction number, because it is equal to n+sod(n) for n = 31311313120291 and 31311313120300.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5181572 + ... + 9458927.

It is an arithmetic number, because the mean of its divisors is an integer number (1612797480000).

Almost surely, 2^{31311313120322} is an apocalyptic number.

31311313120322 is a deficient number, since it is larger than the sum of its proper divisors (20298206239678).

31311313120322 is a wasteful number, since it uses less digits than its factorization.

31311313120322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14642990.

The product of its (nonzero) digits is 1944, while the sum is 26.

Adding to 31311313120322 its reverse (22302131311313), we get a palindrome (53613444431635).

The spelling of 31311313120322 in words is "thirty-one trillion, three hundred eleven billion, three hundred thirteen million, one hundred twenty thousand, three hundred twenty-two".