203545130431 has 2 divisors, whose sum is σ = 203545130432. Its totient is φ = 203545130430.

The previous prime is 203545130363. The next prime is 203545130441. The reversal of 203545130431 is 134031545302.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 203545130431 - 2⁹ = 203545129919 is a prime.

It is a super-2 number, since 2×203545130431² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 203545130393 and 203545130402.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (203545130441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101772565215 + 101772565216.

It is an arithmetic number, because the mean of its divisors is an integer number (101772565216).

Almost surely, 2^203545130431 is an apocalyptic number.

203545130431 is a deficient number, since it is larger than the sum of its proper divisors (1).

203545130431 is an equidigital number, since it uses as much as digits as its factorization.

203545130431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21600, while the sum is 31.

Adding to 203545130431 its reverse (134031545302), we get a palindrome (337576675733).

The spelling of 203545130431 in words is "two hundred three billion, five hundred forty-five million, one hundred thirty thousand, four hundred thirty-one".