313011031 has 2 divisors, whose sum is σ = 313011032. Its totient is φ = 313011030.

The previous prime is 313011029. The next prime is 313011037. The reversal of 313011031 is 130110313.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 313011031 - 2¹ = 313011029 is a prime.

It is a super-2 number, since 2×313011031² = 195951811055365922, which contains 22 as substring.

Together with 313011029, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (313011037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156505515 + 156505516.

It is an arithmetic number, because the mean of its divisors is an integer number (156505516).

Almost surely, 2^313011031 is an apocalyptic number.

313011031 is a deficient number, since it is larger than the sum of its proper divisors (1).

313011031 is an equidigital number, since it uses as much as digits as its factorization.

313011031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27, while the sum is 13.

The square root of 313011031 is about 17692.1177646996. The cubic root of 313011031 is about 678.9741097752.

Adding to 313011031 its reverse (130110313), we get a palindrome (443121344).

It can be divided in two parts, 3130 and 11031, that added together give a square (14161 = 119²).

The spelling of 313011031 in words is "three hundred thirteen million, eleven thousand, thirty-one".