2002111989 has 8 divisors (see below), whose sum is σ = 2694431520. Its totient is φ = 1322266896.

The previous prime is 2002111987. The next prime is 2002111997. The reversal of 2002111989 is 9891112002.

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

It is not a de Polignac number, because 2002111989 - 2¹ = 2002111987 is a prime.

It is a super-2 number, since 2×2002111989² = 8016904832995072242, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2002111987) 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, 3118234 + ... + 3118875.

It is an arithmetic number, because the mean of its divisors is an integer number (336803940).

Almost surely, 2^2002111989 is an apocalyptic number.

It is an amenable number.

2002111989 is a deficient number, since it is larger than the sum of its proper divisors (692319531).

2002111989 is a wasteful number, since it uses less digits than its factorization.

2002111989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6237219.

The product of its (nonzero) digits is 2592, while the sum is 33.

The square root of 2002111989 is about 44744.9660744089. The cubic root of 2002111989 is about 1260.3643837785.

The spelling of 2002111989 in words is "two billion, two million, one hundred eleven thousand, nine hundred eighty-nine".