311431111121042 has 16 divisors (see below), whose sum is σ = 509615026042752. Its totient is φ = 141559462471920.

The previous prime is 311431111121023. The next prime is 311431111121051. The reversal of 311431111121042 is 240121111134113.

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, 19458983 + ... + 31646709.

It is an arithmetic number, because the mean of its divisors is an integer number (31850939127672).

Almost surely, 2^{311431111121042} is an apocalyptic number.

311431111121042 is a deficient number, since it is larger than the sum of its proper divisors (198183914921710).

311431111121042 is a wasteful number, since it uses less digits than its factorization.

311431111121042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13349233.

The product of its (nonzero) digits is 576, while the sum is 26.

Adding to 311431111121042 its reverse (240121111134113), we get a palindrome (551552222255155).

The spelling of 311431111121042 in words is "three hundred eleven trillion, four hundred thirty-one billion, one hundred eleven million, one hundred twenty-one thousand, forty-two".