313404031 has 16 divisors (see below), whose sum is σ = 338415840. Its totient is φ = 289336320.

The previous prime is 313404029. The next prime is 313404053. The reversal of 313404031 is 130404313.

It is a cyclic number.

It is not a de Polignac number, because 313404031 - 2¹ = 313404029 is a prime.

It is a super-2 number, since 2×313404031² = 196444173294097922, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313404001) 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 15 ways as a sum of consecutive naturals, for example, 129771 + ... + 132163.

It is an arithmetic number, because the mean of its divisors is an integer number (21150990).

Almost surely, 2^313404031 is an apocalyptic number.

313404031 is the 11197-th centered pentagonal number.

313404031 is a deficient number, since it is larger than the sum of its proper divisors (25011809).

313404031 is a wasteful number, since it uses less digits than its factorization.

313404031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2586.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 313404031 is about 17703.2209216289. The cubic root of 313404031 is about 679.2581521903.

Adding to 313404031 its reverse (130404313), we get a palindrome (443808344).

The spelling of 313404031 in words is "three hundred thirteen million, four hundred four thousand, thirty-one".