311057862340 has 24 divisors (see below), whose sum is σ = 657605554200. Its totient is φ = 123588089088.

The previous prime is 311057862337. The next prime is 311057862407. The reversal of 311057862340 is 43268750113.

It can be written as a sum of positive squares in 4 ways, for example, as 28688906884 + 282368955456 = 169378^2 + 531384^2 .

It is a junction number, because it is equal to n+sod(n) for n = 311057862293 and 311057862302.

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 7 ways as a sum of consecutive naturals, for example, 52187937 + ... + 52193896.

It is an arithmetic number, because the mean of its divisors is an integer number (27400231425).

Almost surely, 2^311057862340 is an apocalyptic number.

It is an amenable number.

311057862340 is an abundant number, since it is smaller than the sum of its proper divisors (346547691860).

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

311057862340 is a wasteful number, since it uses less digits than its factorization.

311057862340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104381991 (or 104381989 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 40.

The spelling of 311057862340 in words is "three hundred eleven billion, fifty-seven million, eight hundred sixty-two thousand, three hundred forty".