203312130137 has 2 divisors, whose sum is σ = 203312130138. Its totient is φ = 203312130136.

The previous prime is 203312130061. The next prime is 203312130149. The reversal of 203312130137 is 731031213302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 176476448281 + 26835681856 = 420091^2 + 163816^2 .

It is a cyclic number.

It is not a de Polignac number, because 203312130137 - 2²⁴ = 203295352921 is a prime.

It is not a weakly prime, because it can be changed into another prime (203312139137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101656065068 + 101656065069.

It is an arithmetic number, because the mean of its divisors is an integer number (101656065069).

Almost surely, 2^203312130137 is an apocalyptic number.

It is an amenable number.

203312130137 is a deficient number, since it is larger than the sum of its proper divisors (1).

203312130137 is an equidigital number, since it uses as much as digits as its factorization.

203312130137 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2268, while the sum is 26.

Adding to 203312130137 its reverse (731031213302), we get a palindrome (934343343439).

The spelling of 203312130137 in words is "two hundred three billion, three hundred twelve million, one hundred thirty thousand, one hundred thirty-seven".