2100430999 has 2 divisors, whose sum is σ = 2100431000. Its totient is φ = 2100430998.

The previous prime is 2100430993. The next prime is 2100431017. The reversal of 2100430999 is 9990340012.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2100430999 - 2³ = 2100430991 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2100430991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1050215499 + 1050215500.

It is an arithmetic number, because the mean of its divisors is an integer number (1050215500).

Almost surely, 2^2100430999 is an apocalyptic number.

2100430999 is a deficient number, since it is larger than the sum of its proper divisors (1).

2100430999 is an equidigital number, since it uses as much as digits as its factorization.

2100430999 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17496, while the sum is 37.

The square root of 2100430999 is about 45830.4592929200. The cubic root of 2100430999 is about 1280.6667666677. Note that the first 3 decimals are identical.

It can be divided in two parts, 21004 and 30999, that added together give a triangular number (52003 = T₃₂₂).

The spelling of 2100430999 in words is "two billion, one hundred million, four hundred thirty thousand, nine hundred ninety-nine".