131143203 has 6 divisors (see below), whose sum is σ = 189429084. Its totient is φ = 87428796.

The previous prime is 131143153. The next prime is 131143211. The reversal of 131143203 is 302341131.

It is not a de Polignac number, because 131143203 - 2⁹ = 131142691 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131143223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7285725 + ... + 7285742.

It is an arithmetic number, because the mean of its divisors is an integer number (31571514).

Almost surely, 2^131143203 is an apocalyptic number.

131143203 is a deficient number, since it is larger than the sum of its proper divisors (58285881).

131143203 is a wasteful number, since it uses less digits than its factorization.

131143203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14571473 (or 14571470 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 131143203 is about 11451.7772856444. Note that the first 3 decimals coincide. The cubic root of 131143203 is about 508.0603021705.

Adding to 131143203 its reverse (302341131), we get a palindrome (433484334).

The spelling of 131143203 in words is "one hundred thirty-one million, one hundred forty-three thousand, two hundred three".