201942943 has 2 divisors, whose sum is σ = 201942944. Its totient is φ = 201942942.

The previous prime is 201942941. The next prime is 201942971. The reversal of 201942943 is 349249102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 201942943 - 2¹ = 201942941 is a prime.

Together with 201942941, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 201942899 and 201942908.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201942941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100971471 + 100971472.

It is an arithmetic number, because the mean of its divisors is an integer number (100971472).

Almost surely, 2^201942943 is an apocalyptic number.

201942943 is a deficient number, since it is larger than the sum of its proper divisors (1).

201942943 is an equidigital number, since it uses as much as digits as its factorization.

201942943 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 201942943 is about 14210.6630035336. The cubic root of 201942943 is about 586.6911814323.

The spelling of 201942943 in words is "two hundred one million, nine hundred forty-two thousand, nine hundred forty-three".