311340613155 has 256 divisors, whose sum is σ = 643778150400. Its totient is φ = 126137917440.

The previous prime is 311340613151. The next prime is 311340613169. The reversal of 311340613155 is 551316043113.

It is a happy number.

311340613155 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 311340613155 - 2² = 311340613151 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (311340613151) by changing a digit.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 101115906 + ... + 101118984.

It is an arithmetic number, because the mean of its divisors is an integer number (2514758400).

Almost surely, 2^311340613155 is an apocalyptic number.

311340613155 is an abundant number, since it is smaller than the sum of its proper divisors (332437537245).

311340613155 is a wasteful number, since it uses less digits than its factorization.

311340613155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3234.

The product of its (nonzero) digits is 16200, while the sum is 33.

Adding to 311340613155 its reverse (551316043113), we get a palindrome (862656656268).

The spelling of 311340613155 in words is "three hundred eleven billion, three hundred forty million, six hundred thirteen thousand, one hundred fifty-five".