2002002023209 has 8 divisors (see below), whose sum is σ = 2007891322760. Its totient is φ = 1996121097216.

The previous prime is 2002002023207. The next prime is 2002002023227. The reversal of 2002002023209 is 9023202002002.

It can be written as a sum of positive squares in 4 ways, for example, as 1274972947609 + 727029075600 = 1129147^2 + 852660^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2002002023209 - 2¹ = 2002002023207 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2002002023209.

It is not an unprimeable number, because it can be changed into a prime (2002002023207) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1614354 + ... + 2571019.

It is an arithmetic number, because the mean of its divisors is an integer number (250986415345).

Almost surely, 2^{2002002023209} is an apocalyptic number.

It is an amenable number.

2002002023209 is a deficient number, since it is larger than the sum of its proper divisors (5889299551).

2002002023209 is an equidigital number, since it uses as much as digits as its factorization.

2002002023209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4186779.

The product of its (nonzero) digits is 864, while the sum is 22.

The spelling of 2002002023209 in words is "two trillion, two billion, two million, twenty-three thousand, two hundred nine".