203940584893 has 2 divisors, whose sum is σ = 203940584894. Its totient is φ = 203940584892.

The previous prime is 203940584843. The next prime is 203940584917. The reversal of 203940584893 is 398485049302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 168332140089 + 35608444804 = 410283^2 + 188702^2 .

It is a cyclic number.

It is not a de Polignac number, because 203940584893 - 2³³ = 195350650301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (203940584843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101970292446 + 101970292447.

It is an arithmetic number, because the mean of its divisors is an integer number (101970292447).

Almost surely, 2^203940584893 is an apocalyptic number.

It is an amenable number.

203940584893 is a deficient number, since it is larger than the sum of its proper divisors (1).

203940584893 is an equidigital number, since it uses as much as digits as its factorization.

203940584893 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7464960, while the sum is 55.

The spelling of 203940584893 in words is "two hundred three billion, nine hundred forty million, five hundred eighty-four thousand, eight hundred ninety-three".