131801203 has 2 divisors, whose sum is σ = 131801204. Its totient is φ = 131801202.

The previous prime is 131801177. The next prime is 131801227. The reversal of 131801203 is 302108131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 131801203 - 2¹⁷ = 131670131 is a prime.

It is a super-2 number, since 2×131801203² = 34743114224494418, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (131801273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65900601 + 65900602.

It is an arithmetic number, because the mean of its divisors is an integer number (65900602).

Almost surely, 2^131801203 is an apocalyptic number.

131801203 is a deficient number, since it is larger than the sum of its proper divisors (1).

131801203 is an equidigital number, since it uses as much as digits as its factorization.

131801203 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 131801203 is about 11480.4705042955. The cubic root of 131801203 is about 508.9086016146.

Adding to 131801203 its reverse (302108131), we get a palindrome (433909334).

The spelling of 131801203 in words is "one hundred thirty-one million, eight hundred one thousand, two hundred three".