311122000313 has 8 divisors (see below), whose sum is σ = 318004998408. Its totient is φ = 304276512384.

The previous prime is 311122000309. The next prime is 311122000349. The reversal of 311122000313 is 313000221113.

It can be written as a sum of positive squares in 4 ways, for example, as 6691730809 + 304430269504 = 81803^2 + 551752^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 311122000313 - 2² = 311122000309 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 311122000291 and 311122000300.

It is not an unprimeable number, because it can be changed into a prime (311122000513) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9360770 + ... + 9393947.

It is an arithmetic number, because the mean of its divisors is an integer number (39750624801).

Almost surely, 2^311122000313 is an apocalyptic number.

It is an amenable number.

311122000313 is a deficient number, since it is larger than the sum of its proper divisors (6882998095).

311122000313 is a wasteful number, since it uses less digits than its factorization.

311122000313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18755083.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 311122000313 its reverse (313000221113), we get a palindrome (624122221426).

The spelling of 311122000313 in words is "three hundred eleven billion, one hundred twenty-two million, three hundred thirteen", and thus it is an aban number.