203131130201 has 2 divisors, whose sum is σ = 203131130202. Its totient is φ = 203131130200.

The previous prime is 203131130177. The next prime is 203131130203. The reversal of 203131130201 is 102031131302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 151044936025 + 52086194176 = 388645^2 + 228224^2 .

It is a cyclic number.

It is not a de Polignac number, because 203131130201 - 2¹⁰ = 203131129177 is a prime.

It is a super-2 number, since 2×203131130201² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

Together with 203131130203, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 203131130201.

It is not a weakly prime, because it can be changed into another prime (203131130203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101565565100 + 101565565101.

It is an arithmetic number, because the mean of its divisors is an integer number (101565565101).

Almost surely, 2^203131130201 is an apocalyptic number.

It is an amenable number.

203131130201 is a deficient number, since it is larger than the sum of its proper divisors (1).

203131130201 is an equidigital number, since it uses as much as digits as its factorization.

203131130201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 203131130201 its reverse (102031131302), we get a palindrome (305162261503).

The spelling of 203131130201 in words is "two hundred three billion, one hundred thirty-one million, one hundred thirty thousand, two hundred one".