131113313 has 4 divisors (see below), whose sum is σ = 131332800. Its totient is φ = 130893828.

The previous prime is 131113303. The next prime is 131113349. The reversal of 131113313 is 313311131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 131113313 - 2¹² = 131109217 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131113291 and 131113300.

It is not an unprimeable number, because it can be changed into a prime (131113303) 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, 108845 + ... + 110042.

It is an arithmetic number, because the mean of its divisors is an integer number (32833200).

Almost surely, 2^131113313 is an apocalyptic number.

It is an amenable number.

131113313 is a deficient number, since it is larger than the sum of its proper divisors (219487).

131113313 is an equidigital number, since it uses as much as digits as its factorization.

131113313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219486.

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

The square root of 131113313 is about 11450.4721736704. The cubic root of 131113313 is about 508.0217004081.

Adding to 131113313 its reverse (313311131), we get a palindrome (444424444).

The spelling of 131113313 in words is "one hundred thirty-one million, one hundred thirteen thousand, three hundred thirteen".