311200022013 has 16 divisors (see below), whose sum is σ = 436914616320. Its totient is φ = 196483187376.

The previous prime is 311200021987. The next prime is 311200022027. The reversal of 311200022013 is 310220002113.

It is not a de Polignac number, because 311200022013 - 2¹³ = 311200013821 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 311200021983 and 311200022001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311200022213) 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, 715245 + ... + 1064882.

It is an arithmetic number, because the mean of its divisors is an integer number (27307163520).

Almost surely, 2^311200022013 is an apocalyptic number.

It is an amenable number.

311200022013 is a deficient number, since it is larger than the sum of its proper divisors (125714594307).

311200022013 is a wasteful number, since it uses less digits than its factorization.

311200022013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1783216.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 311200022013 its reverse (310220002113), we get a palindrome (621420024126).

The spelling of 311200022013 in words is "three hundred eleven billion, two hundred million, twenty-two thousand, thirteen".