10200020989 has 2 divisors, whose sum is σ = 10200020990. Its totient is φ = 10200020988.

The previous prime is 10200020983. The next prime is 10200021001. The reversal of 10200020989 is 98902000201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6945888964 + 3254132025 = 83342^2 + 57045^2 .

It is a cyclic number.

It is not a de Polignac number, because 10200020989 - 2³¹ = 8052537341 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10200020989.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10200020983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5100010494 + 5100010495.

It is an arithmetic number, because the mean of its divisors is an integer number (5100010495).

Almost surely, 2^10200020989 is an apocalyptic number.

It is an amenable number.

10200020989 is a deficient number, since it is larger than the sum of its proper divisors (1).

10200020989 is an equidigital number, since it uses as much as digits as its factorization.

10200020989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 31.

The spelling of 10200020989 in words is "ten billion, two hundred million, twenty thousand, nine hundred eighty-nine".