1002011199989 has 2 divisors, whose sum is σ = 1002011199990. Its totient is φ = 1002011199988.

The previous prime is 1002011199983. The next prime is 1002011200037. The reversal of 1002011199989 is 9899911102001.

1002011199989 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 622749831025 + 379261368964 = 789145^2 + 615842^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1002011199989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1002011199983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 501005599994 + 501005599995.

It is an arithmetic number, because the mean of its divisors is an integer number (501005599995).

Almost surely, 2^{1002011199989} is an apocalyptic number.

It is an amenable number.

1002011199989 is a deficient number, since it is larger than the sum of its proper divisors (1).

1002011199989 is an equidigital number, since it uses as much as digits as its factorization.

1002011199989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 104976, while the sum is 50.

The spelling of 1002011199989 in words is "one trillion, two billion, eleven million, one hundred ninety-nine thousand, nine hundred eighty-nine".