203023130171 has 2 divisors, whose sum is σ = 203023130172. Its totient is φ = 203023130170.

The previous prime is 203023130159. The next prime is 203023130179. The reversal of 203023130171 is 171031320302.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-203023130171 is a prime.

It is not a weakly prime, because it can be changed into another prime (203023130179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101511565085 + 101511565086.

It is an arithmetic number, because the mean of its divisors is an integer number (101511565086).

Almost surely, 2^203023130171 is an apocalyptic number.

203023130171 is a deficient number, since it is larger than the sum of its proper divisors (1).

203023130171 is an equidigital number, since it uses as much as digits as its factorization.

203023130171 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 756, while the sum is 23.

Adding to 203023130171 its reverse (171031320302), we get a palindrome (374054450473).

The spelling of 203023130171 in words is "two hundred three billion, twenty-three million, one hundred thirty thousand, one hundred seventy-one".