311323044445 has 16 divisors (see below), whose sum is σ = 427262572800. Its totient is φ = 213326031744.

The previous prime is 311323044427. The next prime is 311323044451. The reversal of 311323044445 is 544440323113.

It is not a de Polignac number, because 311323044445 - 2⁵ = 311323044413 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 311323044445.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 3130072 + ... + 3228001.

It is an arithmetic number, because the mean of its divisors is an integer number (26703910800).

Almost surely, 2^311323044445 is an apocalyptic number.

311323044445 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

311323044445 is a deficient number, since it is larger than the sum of its proper divisors (115939528355).

311323044445 is a wasteful number, since it uses less digits than its factorization.

311323044445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6359484.

The product of its (nonzero) digits is 69120, while the sum is 34.

Adding to 311323044445 its reverse (544440323113), we get a palindrome (855763367558).

The spelling of 311323044445 in words is "three hundred eleven billion, three hundred twenty-three million, forty-four thousand, four hundred forty-five".