311104134220 has 24 divisors (see below), whose sum is σ = 712711289808. Its totient is φ = 113128776000.

The previous prime is 311104134137. The next prime is 311104134259. The reversal of 311104134220 is 22431401113.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 311104134191 and 311104134200.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 707054631 + ... + 707055070.

It is an arithmetic number, because the mean of its divisors is an integer number (29696303742).

Almost surely, 2^311104134220 is an apocalyptic number.

It is an amenable number.

311104134220 is an abundant number, since it is smaller than the sum of its proper divisors (401607155588).

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

311104134220 is a wasteful number, since it uses less digits than its factorization.

311104134220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1414109721 (or 1414109719 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 311104134220 its reverse (22431401113), we get a palindrome (333535535333).

The spelling of 311104134220 in words is "three hundred eleven billion, one hundred four million, one hundred thirty-four thousand, two hundred twenty".