20023101089 has 2 divisors, whose sum is σ = 20023101090. Its totient is φ = 20023101088.

The previous prime is 20023101071. The next prime is 20023101149. The reversal of 20023101089 is 98010132002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17897891089 + 2125210000 = 133783^2 + 46100^2 .

It is a cyclic number.

It is not a de Polignac number, because 20023101089 - 2¹² = 20023096993 is a prime.

It is not a weakly prime, because it can be changed into another prime (20023101019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10011550544 + 10011550545.

It is an arithmetic number, because the mean of its divisors is an integer number (10011550545).

Almost surely, 2^20023101089 is an apocalyptic number.

It is an amenable number.

20023101089 is a deficient number, since it is larger than the sum of its proper divisors (1).

20023101089 is an equidigital number, since it uses as much as digits as its factorization.

20023101089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 26.

The spelling of 20023101089 in words is "twenty billion, twenty-three million, one hundred one thousand, eighty-nine".