2002000031989 has 2 divisors, whose sum is σ = 2002000031990. Its totient is φ = 2002000031988.

The previous prime is 2002000031987. The next prime is 2002000032007. The reversal of 2002000031989 is 9891300002002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1557167058225 + 444832973764 = 1247865^2 + 666958^2 .

It is a cyclic number.

It is not a de Polignac number, because 2002000031989 - 2¹ = 2002000031987 is a prime.

It is a super-2 number, since 2×2002000031989² (a number of 25 digits) contains 22 as substring.

Together with 2002000031987, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2002000031981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1001000015994 + 1001000015995.

It is an arithmetic number, because the mean of its divisors is an integer number (1001000015995).

Almost surely, 2^{2002000031989} is an apocalyptic number.

It is an amenable number.

2002000031989 is a deficient number, since it is larger than the sum of its proper divisors (1).

2002000031989 is an equidigital number, since it uses as much as digits as its factorization.

2002000031989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 34.

The spelling of 2002000031989 in words is "two trillion, two billion, thirty-one thousand, nine hundred eighty-nine".