131320103 has 4 divisors (see below), whose sum is σ = 131734680. Its totient is φ = 130905528.

The previous prime is 131320093. The next prime is 131320139. The reversal of 131320103 is 301023131.

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 131320103 - 2⁸ = 131319847 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131320183) 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, 206813 + ... + 207446.

It is an arithmetic number, because the mean of its divisors is an integer number (32933670).

Almost surely, 2^131320103 is an apocalyptic number.

131320103 is a deficient number, since it is larger than the sum of its proper divisors (414577).

131320103 is an equidigital number, since it uses as much as digits as its factorization.

131320103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 414576.

The product of its (nonzero) digits is 54, while the sum is 14.

The square root of 131320103 is about 11459.4983747108. The cubic root of 131320103 is about 508.2886415843.

Adding to 131320103 its reverse (301023131), we get a palindrome (432343234).

The spelling of 131320103 in words is "one hundred thirty-one million, three hundred twenty thousand, one hundred three".