313120040 has 32 divisors (see below), whose sum is σ = 705024000. Its totient is φ = 125158464.

The previous prime is 313120039. The next prime is 313120069. The reversal of 313120040 is 40021313.

It is a junction number, because it is equal to n+sod(n) for n = 313119997 and 313120024.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 107321 + ... + 110199.

It is an arithmetic number, because the mean of its divisors is an integer number (22032000).

Almost surely, 2^313120040 is an apocalyptic number.

It is an amenable number.

313120040 is an abundant number, since it is smaller than the sum of its proper divisors (391903960).

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

313120040 is a wasteful number, since it uses less digits than its factorization.

313120040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5609 (or 5605 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 313120040 is about 17695.1982187259. The cubic root of 313120040 is about 679.0529203080.

Adding to 313120040 its reverse (40021313), we get a palindrome (353141353).

The spelling of 313120040 in words is "three hundred thirteen million, one hundred twenty thousand, forty".