20023230089 has 2 divisors, whose sum is σ = 20023230090. Its totient is φ = 20023230088.

The previous prime is 20023230041. The next prime is 20023230121. The reversal of 20023230089 is 98003232002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19967950864 + 55279225 = 141308^2 + 7435^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20023230089 is a prime.

It is not a weakly prime, because it can be changed into another prime (20023230889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10011615044 + 10011615045.

It is an arithmetic number, because the mean of its divisors is an integer number (10011615045).

Almost surely, 2^20023230089 is an apocalyptic number.

It is an amenable number.

20023230089 is a deficient number, since it is larger than the sum of its proper divisors (1).

20023230089 is an equidigital number, since it uses as much as digits as its factorization.

20023230089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 29.

The spelling of 20023230089 in words is "twenty billion, twenty-three million, two hundred thirty thousand, eighty-nine".