31311331310122 has 16 divisors (see below), whose sum is σ = 47610842832000. Its totient is φ = 15441054531552.

The previous prime is 31311331310117. The next prime is 31311331310153. The reversal of 31311331310122 is 22101313311313.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14874879 + ... + 16848877.

It is an arithmetic number, because the mean of its divisors is an integer number (2975677677000).

Almost surely, 2^{31311331310122} is an apocalyptic number.

31311331310122 is a deficient number, since it is larger than the sum of its proper divisors (16299511521878).

31311331310122 is a wasteful number, since it uses less digits than its factorization.

31311331310122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2082717.

The product of its (nonzero) digits is 972, while the sum is 25.

Adding to 31311331310122 its reverse (22101313311313), we get a palindrome (53412644621435).

The spelling of 31311331310122 in words is "thirty-one trillion, three hundred eleven billion, three hundred thirty-one million, three hundred ten thousand, one hundred twenty-two".