311113312020311 has 32 divisors (see below), whose sum is σ = 323287493760000. Its totient is φ = 299193646752000.

The previous prime is 311113312020193. The next prime is 311113312020331. The reversal of 311113312020311 is 113020213311113.

It is a cyclic number.

It is not a de Polignac number, because 311113312020311 - 2²² = 311113307826007 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 (311113312020331) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 639985601 + ... + 640471541.

It is an arithmetic number, because the mean of its divisors is an integer number (10102734180000).

Almost surely, 2^{311113312020311} is an apocalyptic number.

311113312020311 is a deficient number, since it is larger than the sum of its proper divisors (12174181739689).

311113312020311 is a wasteful number, since it uses less digits than its factorization.

311113312020311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 486911.

The product of its (nonzero) digits is 324, while the sum is 23.

Adding to 311113312020311 its reverse (113020213311113), we get a palindrome (424133525331424).

The spelling of 311113312020311 in words is "three hundred eleven trillion, one hundred thirteen billion, three hundred twelve million, twenty thousand, three hundred eleven".