311103320232 has 32 divisors (see below), whose sum is σ = 778665888000. Its totient is φ = 103580095104.

The previous prime is 311103320207. The next prime is 311103320249. The reversal of 311103320232 is 232023301113.

It is a junction number, because it is equal to n+sod(n) for n = 311103320199 and 311103320208.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7542232 + ... + 7583367.

It is an arithmetic number, because the mean of its divisors is an integer number (24333309000).

Almost surely, 2^311103320232 is an apocalyptic number.

It is an amenable number.

311103320232 is an abundant number, since it is smaller than the sum of its proper divisors (467562567768).

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

311103320232 is a wasteful number, since it uses less digits than its factorization.

311103320232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15126465 (or 15126461 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 311103320232 its reverse (232023301113), we get a palindrome (543126621345).

The spelling of 311103320232 in words is "three hundred eleven billion, one hundred three million, three hundred twenty thousand, two hundred thirty-two".