203130131 has 4 divisors (see below), whose sum is σ = 206161992. Its totient is φ = 200098272.

The previous prime is 203130107. The next prime is 203130139. The reversal of 203130131 is 131031302.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 131031302 = 2 ⋅65515651.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-203130131 is a prime.

It is a super-2 number, since 2×203130131² = 82523700240154322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (203130139) 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, 1515830 + ... + 1515963.

It is an arithmetic number, because the mean of its divisors is an integer number (51540498).

Almost surely, 2^203130131 is an apocalyptic number.

203130131 is a deficient number, since it is larger than the sum of its proper divisors (3031861).

203130131 is an equidigital number, since it uses as much as digits as its factorization.

203130131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3031860.

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

The square root of 203130131 is about 14252.3728199904. The cubic root of 203130131 is about 587.8386215083.

Adding to 203130131 its reverse (131031302), we get a palindrome (334161433).

The spelling of 203130131 in words is "two hundred three million, one hundred thirty thousand, one hundred thirty-one".