311311113111202 has 128 divisors (see below), whose sum is σ = 513457682512320. Its totient is φ = 140975324528640.

The previous prime is 311311113111133. The next prime is 311311113111211. The reversal of 311311113111202 is 202111311113113.

It is a happy number.

It can be written as a sum of positive squares in 32 ways, for example, as 104876258109921 + 206434855001281 = 10240911^2 + 14367841^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 28003152948 + ... + 28003164064.

Almost surely, 2^{311311113111202} is an apocalyptic number.

311311113111202 is a deficient number, since it is larger than the sum of its proper divisors (202146569401118).

311311113111202 is a wasteful number, since it uses less digits than its factorization.

311311113111202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12136.

The product of its (nonzero) digits is 108, while the sum is 22.

Adding to 311311113111202 its reverse (202111311113113), we get a palindrome (513422424224315).

The spelling of 311311113111202 in words is "three hundred eleven trillion, three hundred eleven billion, one hundred thirteen million, one hundred eleven thousand, two hundred two".