31321103211122 has 16 divisors (see below), whose sum is σ = 47029462609920. Its totient is φ = 15644623662432.

The previous prime is 31321103211113. The next prime is 31321103211187. The reversal of 31321103211122 is 22111230112313.

It is a happy number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 5854943 + ... + 9844925.

It is an arithmetic number, because the mean of its divisors is an integer number (2939341413120).

Almost surely, 2^{31321103211122} is an apocalyptic number.

31321103211122 is a deficient number, since it is larger than the sum of its proper divisors (15708359398798).

31321103211122 is a wasteful number, since it uses less digits than its factorization.

31321103211122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3993977.

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 31321103211122 its reverse (22111230112313), we get a palindrome (53432333323435).

The spelling of 31321103211122 in words is "thirty-one trillion, three hundred twenty-one billion, one hundred three million, two hundred eleven thousand, one hundred twenty-two".