311112344442 has 128 divisors (see below), whose sum is σ = 679264185600. Its totient is φ = 94666752000.

The previous prime is 311112344393. The next prime is 311112344453. The reversal of 311112344442 is 244443211113.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 363024478 + ... + 363025334.

It is an arithmetic number, because the mean of its divisors is an integer number (5306751450).

Almost surely, 2^311112344442 is an apocalyptic number.

311112344442 is an abundant number, since it is smaller than the sum of its proper divisors (368151841158).

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

311112344442 is a wasteful number, since it uses less digits than its factorization.

311112344442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1792.

The product of its digits is 9216, while the sum is 30.

Adding to 311112344442 its reverse (244443211113), we get a palindrome (555555555555).

The spelling of 311112344442 in words is "three hundred eleven billion, one hundred twelve million, three hundred forty-four thousand, four hundred forty-two".