313112502 has 48 divisors (see below), whose sum is σ = 689729040. Its totient is φ = 102643200.

The previous prime is 313112497. The next prime is 313112509. The reversal of 313112502 is 205211313.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313112509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 385677 + ... + 386487.

It is an arithmetic number, because the mean of its divisors is an integer number (14369355).

Almost surely, 2^313112502 is an apocalyptic number.

313112502 is an abundant number, since it is smaller than the sum of its proper divisors (376616538).

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

313112502 is a wasteful number, since it uses less digits than its factorization.

313112502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1149 (or 1146 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 313112502 is about 17694.9852218079. The cubic root of 313112502 is about 679.0474711284.

Adding to 313112502 its reverse (205211313), we get a palindrome (518323815).

The spelling of 313112502 in words is "three hundred thirteen million, one hundred twelve thousand, five hundred two".