311321451118 has 32 divisors (see below), whose sum is σ = 492869836800. Its totient is φ = 147192810336.

The previous prime is 311321451113. The next prime is 311321451151. The reversal of 311321451118 is 811154123113.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 311321451118.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311321451113) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 2151123 + ... + 2291281.

It is an arithmetic number, because the mean of its divisors is an integer number (15402182400).

Almost surely, 2^311321451118 is an apocalyptic number.

311321451118 is a deficient number, since it is larger than the sum of its proper divisors (181548385682).

311321451118 is a wasteful number, since it uses less digits than its factorization.

311321451118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140736.

The product of its digits is 2880, while the sum is 31.

The spelling of 311321451118 in words is "three hundred eleven billion, three hundred twenty-one million, four hundred fifty-one thousand, one hundred eighteen".