313331042 has 8 divisors (see below), whose sum is σ = 471480156. Its totient is φ = 156170992.

The previous prime is 313331041. The next prime is 313331069. The reversal of 313331042 is 240133313.

It can be written as a sum of positive squares in 2 ways, for example, as 309091561 + 4239481 = 17581^2 + 2059^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (313331041) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 246473 + ... + 247740.

Almost surely, 2^313331042 is an apocalyptic number.

313331042 is a deficient number, since it is larger than the sum of its proper divisors (158149114).

313331042 is a wasteful number, since it uses less digits than its factorization.

313331042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 494532.

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 313331042 is about 17701.1593405630. The cubic root of 313331042 is about 679.2054170437.

Adding to 313331042 its reverse (240133313), we get a palindrome (553464355).

The spelling of 313331042 in words is "three hundred thirteen million, three hundred thirty-one thousand, forty-two".