311200397879 has 16 divisors (see below), whose sum is σ = 356130078720. Its totient is φ = 266389080480.

The previous prime is 311200397861. The next prime is 311200397881. The reversal of 311200397879 is 978793002113.

It is a cyclic number.

It is not a de Polignac number, because 311200397879 - 2¹⁶ = 311200332343 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311200397479) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18372044 + ... + 18388974.

It is an arithmetic number, because the mean of its divisors is an integer number (22258129920).

Almost surely, 2^311200397879 is an apocalyptic number.

311200397879 is a deficient number, since it is larger than the sum of its proper divisors (44929680841).

311200397879 is a wasteful number, since it uses less digits than its factorization.

311200397879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20270.

The product of its (nonzero) digits is 571536, while the sum is 50.

The spelling of 311200397879 in words is "three hundred eleven billion, two hundred million, three hundred ninety-seven thousand, eight hundred seventy-nine".