311909875713 has 32 divisors (see below), whose sum is σ = 466984425600. Its totient is φ = 205738057728.

The previous prime is 311909875709. The next prime is 311909875727. The reversal of 311909875713 is 317578909113.

It is not a de Polignac number, because 311909875713 - 2² = 311909875709 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 311909875713.

It is not an unprimeable number, because it can be changed into a prime (311909875793) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10510945 + ... + 10540577.

It is an arithmetic number, because the mean of its divisors is an integer number (14593263300).

Almost surely, 2^311909875713 is an apocalyptic number.

It is an amenable number.

311909875713 is a deficient number, since it is larger than the sum of its proper divisors (155074549887).

311909875713 is a wasteful number, since it uses less digits than its factorization.

311909875713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33758 (or 33752 counting only the distinct ones).

The product of its (nonzero) digits is 1428840, while the sum is 54.

The spelling of 311909875713 in words is "three hundred eleven billion, nine hundred nine million, eight hundred seventy-five thousand, seven hundred thirteen".