131343203 has 4 divisors (see below), whose sum is σ = 131371968. Its totient is φ = 131314440.

The previous prime is 131343161. The next prime is 131343211. The reversal of 131343203 is 302343131.

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 131343203 - 2²⁰ = 130294627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131343253) 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, 5843 + ... + 17228.

It is an arithmetic number, because the mean of its divisors is an integer number (32842992).

Almost surely, 2^131343203 is an apocalyptic number.

131343203 is a deficient number, since it is larger than the sum of its proper divisors (28765).

131343203 is an equidigital number, since it uses as much as digits as its factorization.

131343203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28764.

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 131343203 is about 11460.5062279116. The cubic root of 131343203 is about 508.3184435186.

Adding to 131343203 its reverse (302343131), we get a palindrome (433686334).

The spelling of 131343203 in words is "one hundred thirty-one million, three hundred forty-three thousand, two hundred three".