2099421253 has 2 divisors, whose sum is σ = 2099421254. Its totient is φ = 2099421252.

The previous prime is 2099421229. The next prime is 2099421263. The reversal of 2099421253 is 3521249902.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1934504289 + 164916964 = 43983^2 + 12842^2 .

It is a cyclic number.

It is not a de Polignac number, because 2099421253 - 2⁵ = 2099421221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2099421263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1049710626 + 1049710627.

It is an arithmetic number, because the mean of its divisors is an integer number (1049710627).

Almost surely, 2^2099421253 is an apocalyptic number.

It is an amenable number.

2099421253 is a deficient number, since it is larger than the sum of its proper divisors (1).

2099421253 is an equidigital number, since it uses as much as digits as its factorization.

2099421253 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 2099421253 is about 45819.4418669630. The cubic root of 2099421253 is about 1280.4615142821.

The spelling of 2099421253 in words is "two billion, ninety-nine million, four hundred twenty-one thousand, two hundred fifty-three".