311320300005 has 48 divisors (see below), whose sum is σ = 633961351296. Its totient is φ = 139332159360.

The previous prime is 311320300001. The next prime is 311320300007. The reversal of 311320300005 is 500003023113.

311320300005 is a `hidden beast` number, since 311 + 320 + 30 + 0 + 0 + 0 + 5 = 666.

It is not a de Polignac number, because 311320300005 - 2² = 311320300001 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311320300001) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 24183177 + ... + 24196046.

It is an arithmetic number, because the mean of its divisors is an integer number (13207528152).

Almost surely, 2^311320300005 is an apocalyptic number.

It is an amenable number.

311320300005 is an abundant number, since it is smaller than the sum of its proper divisors (322641051291).

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

311320300005 is a wasteful number, since it uses less digits than its factorization.

311320300005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48379258 (or 48379255 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 18.

Adding to 311320300005 its reverse (500003023113), we get a palindrome (811323323118).

The spelling of 311320300005 in words is "three hundred eleven billion, three hundred twenty million, three hundred thousand, five".