131313311 has 4 divisors (see below), whose sum is σ = 131480952. Its totient is φ = 131145672.

The previous prime is 131313263. The next prime is 131313317. The reversal of 131313311 is 113313131.

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 131313311 - 2²² = 127119007 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 131313311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131313317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82640 + ... + 84213.

It is an arithmetic number, because the mean of its divisors is an integer number (32870238).

Almost surely, 2^131313311 is an apocalyptic number.

131313311 is a deficient number, since it is larger than the sum of its proper divisors (167641).

131313311 is an equidigital number, since it uses as much as digits as its factorization.

131313311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167640.

The product of its digits is 81, while the sum is 17.

The square root of 131313311 is about 11459.2020228286. The cubic root of 131313311 is about 508.2798783767.

Adding to 131313311 its reverse (113313131), we get a palindrome (244626442).

The spelling of 131313311 in words is "one hundred thirty-one million, three hundred thirteen thousand, three hundred eleven".