2102013239 has 2 divisors, whose sum is σ = 2102013240. Its totient is φ = 2102013238.

The previous prime is 2102013227. The next prime is 2102013257. The reversal of 2102013239 is 9323102012.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2102013239 - 2²⁸ = 1833577783 is a prime.

It is a super-2 number, since 2×2102013239² = 8836919313862542242, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2102013209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1051006619 + 1051006620.

It is an arithmetic number, because the mean of its divisors is an integer number (1051006620).

Almost surely, 2^2102013239 is an apocalyptic number.

2102013239 is a deficient number, since it is larger than the sum of its proper divisors (1).

2102013239 is an equidigital number, since it uses as much as digits as its factorization.

2102013239 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 2102013239 is about 45847.7179257594. The cubic root of 2102013239 is about 1280.9882583986.

The spelling of 2102013239 in words is "two billion, one hundred two million, thirteen thousand, two hundred thirty-nine".