311320031313000 has 128 divisors (see below), whose sum is σ = 976684899939840. Its totient is φ = 82560008160000.

The previous prime is 311320031312989. The next prime is 311320031313001. The reversal of 311320031313000 is 313130023113.

It is not an unprimeable number, because it can be changed into a prime (311320031313001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 286123696 + ... + 287209695.

It is an arithmetic number, because the mean of its divisors is an integer number (7630350780780).

Almost surely, 2^{311320031313000} is an apocalyptic number.

311320031313000 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

311320031313000 is an abundant number, since it is smaller than the sum of its proper divisors (665364868626840).

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

311320031313000 is a wasteful number, since it uses less digits than its factorization.

311320031313000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 573333596 (or 573333582 counting only the distinct ones).

The product of its (nonzero) digits is 486, while the sum is 21.

Adding to 311320031313000 its reverse (313130023113), we get a palindrome (311633161336113).

The spelling of 311320031313000 in words is "three hundred eleven trillion, three hundred twenty billion, thirty-one million, three hundred thirteen thousand".