131040313 has 4 divisors (see below), whose sum is σ = 131151348. Its totient is φ = 130929280.

The previous prime is 131040281. The next prime is 131040319. The reversal of 131040313 is 313040131.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 100160064 + 30880249 = 10008^2 + 5557^2 .

It is a cyclic number.

It is not a de Polignac number, because 131040313 - 2⁵ = 131040281 is a prime.

It is a super-2 number, since 2×131040313² = 34343127262275938, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131040319) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53728 + ... + 56113.

It is an arithmetic number, because the mean of its divisors is an integer number (32787837).

Almost surely, 2^131040313 is an apocalyptic number.

It is an amenable number.

131040313 is a deficient number, since it is larger than the sum of its proper divisors (111035).

131040313 is a wasteful number, since it uses less digits than its factorization.

131040313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111034.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 131040313 is about 11447.2840883766. The cubic root of 131040313 is about 507.9273991045.

Adding to 131040313 its reverse (313040131), we get a palindrome (444080444).

The spelling of 131040313 in words is "one hundred thirty-one million, forty thousand, three hundred thirteen".