2102000399 has 2 divisors, whose sum is σ = 2102000400. Its totient is φ = 2102000398.

The previous prime is 2102000387. The next prime is 2102000431. The reversal of 2102000399 is 9930002012.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2102000399 - 2²⁰ = 2100951823 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2102000339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1051000199 + 1051000200.

It is an arithmetic number, because the mean of its divisors is an integer number (1051000200).

Almost surely, 2^2102000399 is an apocalyptic number.

2102000399 is a deficient number, since it is larger than the sum of its proper divisors (1).

2102000399 is an equidigital number, since it uses as much as digits as its factorization.

2102000399 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 972, while the sum is 26.

The square root of 2102000399 is about 45847.5778967657. The cubic root of 2102000399 is about 1280.9856501178.

The spelling of 2102000399 in words is "two billion, one hundred two million, three hundred ninety-nine", and thus it is an aban number.