313233131 has 2 divisors, whose sum is σ = 313233132. Its totient is φ = 313233130.

The previous prime is 313233077. The next prime is 313233139. The reversal of 313233131 is 131332313.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 313233131 - 2¹⁰ = 313232107 is a prime.

It is a super-2 number, since 2×313233131² = 196229988712126322, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (313233139) 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 as a sum of consecutive naturals, namely, 156616565 + 156616566.

It is an arithmetic number, because the mean of its divisors is an integer number (156616566).

Almost surely, 2^313233131 is an apocalyptic number.

313233131 is a deficient number, since it is larger than the sum of its proper divisors (1).

313233131 is an equidigital number, since it uses as much as digits as its factorization.

313233131 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 486, while the sum is 20.

The square root of 313233131 is about 17698.3934581645. The cubic root of 313233131 is about 679.1346626862.

Adding to 313233131 its reverse (131332313), we get a palindrome (444565444).

It can be divided in two parts, 3132 and 33131, that added together give a palindrome (36263).

The spelling of 313233131 in words is "three hundred thirteen million, two hundred thirty-three thousand, one hundred thirty-one".