201042943 has 2 divisors, whose sum is σ = 201042944. Its totient is φ = 201042942.

The previous prime is 201042929. The next prime is 201042953. The reversal of 201042943 is 349240102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 201042943 - 2⁵ = 201042911 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201042953) 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, 100521471 + 100521472.

It is an arithmetic number, because the mean of its divisors is an integer number (100521472).

Almost surely, 2^201042943 is an apocalyptic number.

201042943 is a deficient number, since it is larger than the sum of its proper divisors (1).

201042943 is an equidigital number, since it uses as much as digits as its factorization.

201042943 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 201042943 is about 14178.9612807145. The cubic root of 201042943 is about 585.8183137200.

The spelling of 201042943 in words is "two hundred one million, forty-two thousand, nine hundred forty-three".