203200423989 has 16 divisors (see below), whose sum is σ = 299343848832. Its totient is φ = 121954899968.

The previous prime is 203200423973. The next prime is 203200423999. The reversal of 203200423989 is 989324002302.

It is a cyclic number.

It is not a de Polignac number, because 203200423989 - 2⁴ = 203200423973 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 203200423989.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203200423919) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86614524 + ... + 86616869.

It is an arithmetic number, because the mean of its divisors is an integer number (18708990552).

Almost surely, 2^203200423989 is an apocalyptic number.

It is an amenable number.

203200423989 is a deficient number, since it is larger than the sum of its proper divisors (96143424843).

203200423989 is a wasteful number, since it uses less digits than its factorization.

203200423989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173231436.

The product of its (nonzero) digits is 186624, while the sum is 42.

The spelling of 203200423989 in words is "two hundred three billion, two hundred million, four hundred twenty-three thousand, nine hundred eighty-nine".