2105230999 has 2 divisors, whose sum is σ = 2105231000. Its totient is φ = 2105230998.

The previous prime is 2105230969. The next prime is 2105231039. The reversal of 2105230999 is 9990325012.

It is an a-pointer prime, because the next prime (2105231039) can be obtained adding 2105230999 to its sum of digits (40).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2105230999 - 2⁹ = 2105230487 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2105230949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1052615499 + 1052615500.

It is an arithmetic number, because the mean of its divisors is an integer number (1052615500).

Almost surely, 2^2105230999 is an apocalyptic number.

2105230999 is a deficient number, since it is larger than the sum of its proper divisors (1).

2105230999 is an equidigital number, since it uses as much as digits as its factorization.

2105230999 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 43740, while the sum is 40.

The square root of 2105230999 is about 45882.7963293433. The cubic root of 2105230999 is about 1281.6415703784.

The spelling of 2105230999 in words is "two billion, one hundred five million, two hundred thirty thousand, nine hundred ninety-nine".