313013031 has 4 divisors (see below), whose sum is σ = 417350712. Its totient is φ = 208675352.

The previous prime is 313013023. The next prime is 313013053. The reversal of 313013031 is 130310313.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 313013031 - 2³ = 313013023 is a prime.

It is a super-2 number, since 2×313013031² = 195954315151613922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 313013031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313013431) 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, 52168836 + ... + 52168841.

It is an arithmetic number, because the mean of its divisors is an integer number (104337678).

Almost surely, 2^313013031 is an apocalyptic number.

313013031 is a deficient number, since it is larger than the sum of its proper divisors (104337681).

313013031 is a wasteful number, since it uses less digits than its factorization.

313013031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104337680.

The product of its (nonzero) digits is 81, while the sum is 15.

The square root of 313013031 is about 17692.1742869552. The cubic root of 313013031 is about 678.9755558854.

Adding to 313013031 its reverse (130310313), we get a palindrome (443323344).

It can be divided in two parts, 3130 and 13031, that added together give a palindrome (16161).

The spelling of 313013031 in words is "three hundred thirteen million, thirteen thousand, thirty-one".