102001000999 has 2 divisors, whose sum is σ = 102001001000. Its totient is φ = 102001000998.

The previous prime is 102001000973. The next prime is 102001001057. The reversal of 102001000999 is 999000100201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 102001000999 - 2¹⁵ = 102000968231 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 102001000999.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102001000949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51000500499 + 51000500500.

It is an arithmetic number, because the mean of its divisors is an integer number (51000500500).

Almost surely, 2^102001000999 is an apocalyptic number.

102001000999 is a deficient number, since it is larger than the sum of its proper divisors (1).

102001000999 is an equidigital number, since it uses as much as digits as its factorization.

102001000999 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1458, while the sum is 31.

The spelling of 102001000999 in words is "one hundred two billion, one million, nine hundred ninety-nine", and thus it is an aban number.