2002120010989 has 6 divisors (see below), whose sum is σ = 2328996747534. Its totient is φ = 1716102866520.

The previous prime is 2002120010987. The next prime is 2002120010993. The reversal of 2002120010989 is 9890100212002.

It can be written as a sum of positive squares in only one way, i.e., 1542171552964 + 459948458025 = 1241842^2 + 678195^2 .

It is not a de Polignac number, because 2002120010989 - 2¹ = 2002120010987 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2002120010981) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 20429795982 + ... + 20429796079.

It is an arithmetic number, because the mean of its divisors is an integer number (388166124589).

Almost surely, 2^{2002120010989} is an apocalyptic number.

It is an amenable number.

2002120010989 is a deficient number, since it is larger than the sum of its proper divisors (326876736545).

2002120010989 is an equidigital number, since it uses as much as digits as its factorization.

2002120010989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40859592075 (or 40859592068 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 34.

The spelling of 2002120010989 in words is "two trillion, two billion, one hundred twenty million, ten thousand, nine hundred eighty-nine".