311131512114 has 32 divisors (see below), whose sum is σ = 628929475776. Its totient is φ = 102600284160.

The previous prime is 311131512113. The next prime is 311131512257. The reversal of 311131512114 is 411215131113.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (311131512113) 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, 1367434 + ... + 1578650.

It is an arithmetic number, because the mean of its divisors is an integer number (19654046118).

Almost surely, 2^311131512114 is an apocalyptic number.

311131512114 is an abundant number, since it is smaller than the sum of its proper divisors (317797963662).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

311131512114 is a wasteful number, since it uses less digits than its factorization.

311131512114 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213850.

The product of its digits is 360, while the sum is 24.

Adding to 311131512114 its reverse (411215131113), we get a palindrome (722346643227).

The spelling of 311131512114 in words is "three hundred eleven billion, one hundred thirty-one million, five hundred twelve thousand, one hundred fourteen".