203890760089 has 2 divisors, whose sum is σ = 203890760090. Its totient is φ = 203890760088.

The previous prime is 203890760039. The next prime is 203890760147. The reversal of 203890760089 is 980067098302.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 166904931600 + 36985828489 = 408540^2 + 192317^2 .

It is a cyclic number.

It is not a de Polignac number, because 203890760089 - 2⁹ = 203890759577 is a prime.

It is not a weakly prime, because it can be changed into another prime (203890760039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101945380044 + 101945380045.

It is an arithmetic number, because the mean of its divisors is an integer number (101945380045).

Almost surely, 2^203890760089 is an apocalyptic number.

It is an amenable number.

203890760089 is a deficient number, since it is larger than the sum of its proper divisors (1).

203890760089 is an equidigital number, since it uses as much as digits as its factorization.

203890760089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1306368, while the sum is 52.

The spelling of 203890760089 in words is "two hundred three billion, eight hundred ninety million, seven hundred sixty thousand, eighty-nine".