311311320132 has 48 divisors (see below), whose sum is σ = 795643551360. Its totient is φ = 94298491392.

The previous prime is 311311320097. The next prime is 311311320143. The reversal of 311311320132 is 231023113113.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 311311320099 and 311311320108.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26305048 + ... + 26316879.

It is an arithmetic number, because the mean of its divisors is an integer number (16575907320).

Almost surely, 2^311311320132 is an apocalyptic number.

It is an amenable number.

311311320132 is an abundant number, since it is smaller than the sum of its proper divisors (484332231228).

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

311311320132 is a wasteful number, since it uses less digits than its factorization.

311311320132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52621980 (or 52621978 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 311311320132 its reverse (231023113113), we get a palindrome (542334433245).

The spelling of 311311320132 in words is "three hundred eleven billion, three hundred eleven million, three hundred twenty thousand, one hundred thirty-two".