313343031 has 32 divisors (see below), whose sum is σ = 459399168. Its totient is φ = 189181440.

The previous prime is 313343029. The next prime is 313343039. The reversal of 313343031 is 130343313.

It is not a de Polignac number, because 313343031 - 2¹ = 313343029 is a prime.

It is a super-2 number, since 2×313343031² = 196367710152533922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 313342989 and 313343007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313343039) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 145146 + ... + 147288.

It is an arithmetic number, because the mean of its divisors is an integer number (14356224).

Almost surely, 2^313343031 is an apocalyptic number.

313343031 is a deficient number, since it is larger than the sum of its proper divisors (146056137).

313343031 is a wasteful number, since it uses less digits than its factorization.

313343031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2271.

The product of its (nonzero) digits is 972, while the sum is 21.

The square root of 313343031 is about 17701.4979874586. The cubic root of 313343031 is about 679.2140797559.

Adding to 313343031 its reverse (130343313), we get a palindrome (443686344).

It can be divided in two parts, 3133 and 43031, that added together give a palindrome (46164).

The spelling of 313343031 in words is "three hundred thirteen million, three hundred forty-three thousand, thirty-one".