311132230144 has 40 divisors (see below), whose sum is σ = 625470793200. Its totient is φ = 154611680256.

The previous prime is 311132230133. The next prime is 311132230151. The reversal of 311132230144 is 441032231113.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1780594 + ... + 1947505.

It is an arithmetic number, because the mean of its divisors is an integer number (15636769830).

Almost surely, 2^311132230144 is an apocalyptic number.

It is an amenable number.

311132230144 is an abundant number, since it is smaller than the sum of its proper divisors (314338563056).

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

311132230144 is an equidigital number, since it uses as much as digits as its factorization.

311132230144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3728280 (or 3728264 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 311132230144 its reverse (441032231113), we get a palindrome (752164461257).

The spelling of 311132230144 in words is "three hundred eleven billion, one hundred thirty-two million, two hundred thirty thousand, one hundred forty-four".