203113434143 has 2 divisors, whose sum is σ = 203113434144. Its totient is φ = 203113434142.

The previous prime is 203113434067. The next prime is 203113434197. The reversal of 203113434143 is 341434311302.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 203113434143 - 2³⁶ = 134393957407 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (203113434743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101556717071 + 101556717072.

It is an arithmetic number, because the mean of its divisors is an integer number (101556717072).

Almost surely, 2^203113434143 is an apocalyptic number.

203113434143 is a deficient number, since it is larger than the sum of its proper divisors (1).

203113434143 is an equidigital number, since it uses as much as digits as its factorization.

203113434143 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 29.

Adding to 203113434143 its reverse (341434311302), we get a palindrome (544547745445).

The spelling of 203113434143 in words is "two hundred three billion, one hundred thirteen million, four hundred thirty-four thousand, one hundred forty-three".