311320210112 has 28 divisors (see below), whose sum is σ = 654115811400. Its totient is φ = 146503627776.

The previous prime is 311320210093. The next prime is 311320210177. The reversal of 311320210112 is 211012023113.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 143068862 + ... + 143071037.

Almost surely, 2^311320210112 is an apocalyptic number.

311320210112 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

311320210112 is an abundant number, since it is smaller than the sum of its proper divisors (342795601288).

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

311320210112 is a wasteful number, since it uses less digits than its factorization.

311320210112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286139928 (or 286139918 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 311320210112 its reverse (211012023113), we get a palindrome (522332233225).

The spelling of 311320210112 in words is "three hundred eleven billion, three hundred twenty million, two hundred ten thousand, one hundred twelve".