311201320232 has 256 divisors, whose sum is σ = 708922368000. Its totient is φ = 126562867200.

The previous prime is 311201320231. The next prime is 311201320237. The reversal of 311201320232 is 232023102113.

It is not an unprimeable number, because it can be changed into a prime (311201320231) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 252803057 + ... + 252804287.

It is an arithmetic number, because the mean of its divisors is an integer number (2769228000).

Almost surely, 2^311201320232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 311201320232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (354461184000).

311201320232 is an abundant number, since it is smaller than the sum of its proper divisors (397721047768).

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

311201320232 is a wasteful number, since it uses less digits than its factorization.

311201320232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1432 (or 1428 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 311201320232 its reverse (232023102113), we get a palindrome (543224422345).

The spelling of 311201320232 in words is "three hundred eleven billion, two hundred one million, three hundred twenty thousand, two hundred thirty-two".