203104130431 has 2 divisors, whose sum is σ = 203104130432. Its totient is φ = 203104130430.

The previous prime is 203104130423. The next prime is 203104130443. The reversal of 203104130431 is 134031401302.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 203104130431 - 2³ = 203104130423 is a prime.

It is a super-2 number, since 2×203104130431² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (203104130461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101552065215 + 101552065216.

It is an arithmetic number, because the mean of its divisors is an integer number (101552065216).

Almost surely, 2^203104130431 is an apocalyptic number.

203104130431 is a deficient number, since it is larger than the sum of its proper divisors (1).

203104130431 is an equidigital number, since it uses as much as digits as its factorization.

203104130431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 203104130431 its reverse (134031401302), we get a palindrome (337135531733).

The spelling of 203104130431 in words is "two hundred three billion, one hundred four million, one hundred thirty thousand, four hundred thirty-one".