20024072102989 has 2 divisors, whose sum is σ = 20024072102990. Its totient is φ = 20024072102988.

The previous prime is 20024072102921. The next prime is 20024072103107. The reversal of 20024072102989 is 98920127042002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12885824040489 + 7138248062500 = 3589683^2 + 2671750^2 .

It is a cyclic number.

It is not a de Polignac number, because 20024072102989 - 2⁷ = 20024072102861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20024072106989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10012036051494 + 10012036051495.

It is an arithmetic number, because the mean of its divisors is an integer number (10012036051495).

Almost surely, 2^{20024072102989} is an apocalyptic number.

It is an amenable number.

20024072102989 is a deficient number, since it is larger than the sum of its proper divisors (1).

20024072102989 is an equidigital number, since it uses as much as digits as its factorization.

20024072102989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 290304, while the sum is 46.

The spelling of 20024072102989 in words is "twenty trillion, twenty-four billion, seventy-two million, one hundred two thousand, nine hundred eighty-nine".