131234313 has 16 divisors (see below), whose sum is σ = 200217600. Its totient is φ = 74900496.

The previous prime is 131234303. The next prime is 131234321. The reversal of 131234313 is 313432131.

It is not a de Polignac number, because 131234313 - 2⁵ = 131234281 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 131234313.

It is not an unprimeable number, because it can be changed into a prime (131234303) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16588 + ... + 23186.

It is an arithmetic number, because the mean of its divisors is an integer number (12513600).

Almost surely, 2^131234313 is an apocalyptic number.

It is an amenable number.

131234313 is a deficient number, since it is larger than the sum of its proper divisors (68983287).

131234313 is an equidigital number, since it uses as much as digits as its factorization.

131234313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7556.

The product of its digits is 648, while the sum is 21.

The square root of 131234313 is about 11455.7545801226. The cubic root of 131234313 is about 508.1779309853.

Adding to 131234313 its reverse (313432131), we get a palindrome (444666444).

The spelling of 131234313 in words is "one hundred thirty-one million, two hundred thirty-four thousand, three hundred thirteen".