2100001000039 has 2 divisors, whose sum is σ = 2100001000040. Its totient is φ = 2100001000038.

The previous prime is 2100001000003. The next prime is 2100001000063. The reversal of 2100001000039 is 9300001000012.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2100001000039 - 2²⁵ = 2099967445607 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2100000999986 and 2100001000031.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2100001009039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1050000500019 + 1050000500020.

It is an arithmetic number, because the mean of its divisors is an integer number (1050000500020).

Almost surely, 2^{2100001000039} is an apocalyptic number.

2100001000039 is a deficient number, since it is larger than the sum of its proper divisors (1).

2100001000039 is an equidigital number, since it uses as much as digits as its factorization.

2100001000039 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54, while the sum is 16.

The spelling of 2100001000039 in words is "two trillion, one hundred billion, one million, thirty-nine", and thus it is an aban number.