203122943 has 4 divisors (see below), whose sum is σ = 209675328. Its totient is φ = 196570560.

The previous prime is 203122883. The next prime is 203122981. The reversal of 203122943 is 349221302.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 203122943 - 2⁸ = 203122687 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203122243) 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 in 3 ways as a sum of consecutive naturals, for example, 3276146 + ... + 3276207.

It is an arithmetic number, because the mean of its divisors is an integer number (52418832).

Almost surely, 2^203122943 is an apocalyptic number.

203122943 is a deficient number, since it is larger than the sum of its proper divisors (6552385).

203122943 is an equidigital number, since it uses as much as digits as its factorization.

203122943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6552384.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 203122943 is about 14252.1206492227. The cubic root of 203122943 is about 587.8316876382.

The spelling of 203122943 in words is "two hundred three million, one hundred twenty-two thousand, nine hundred forty-three".