311220133312130 has 64 divisors (see below), whose sum is σ = 640401404670720. Its totient is φ = 106674528113664.

The previous prime is 311220133312117. The next prime is 311220133312169. The reversal of 311220133312130 is 31213331022113.

It is a self number, because there is not a number n which added to its sum of digits gives 311220133312130.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4471968614 + ... + 4472038206.

It is an arithmetic number, because the mean of its divisors is an integer number (10006271947980).

Almost surely, 2^{311220133312130} is an apocalyptic number.

311220133312130 is an abundant number, since it is smaller than the sum of its proper divisors (329181271358590).

311220133312130 is a wasteful number, since it uses less digits than its factorization.

311220133312130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86363.

The product of its (nonzero) digits is 1944, while the sum is 26.

Adding to 311220133312130 its reverse (31213331022113), we get a palindrome (342433464334243).

The spelling of 311220133312130 in words is "three hundred eleven trillion, two hundred twenty billion, one hundred thirty-three million, three hundred twelve thousand, one hundred thirty".