2099813723 has 16 divisors (see below), whose sum is σ = 2427549696. Its totient is φ = 1779084000.

The previous prime is 2099813719. The next prime is 2099813743. The reversal of 2099813723 is 3273189902.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2099813723 - 2² = 2099813719 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2099813743) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 439598 + ... + 444348.

It is an arithmetic number, because the mean of its divisors is an integer number (151721856).

Almost surely, 2^2099813723 is an apocalyptic number.

2099813723 is a deficient number, since it is larger than the sum of its proper divisors (327735973).

2099813723 is a wasteful number, since it uses less digits than its factorization.

2099813723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5474.

The product of its (nonzero) digits is 163296, while the sum is 44.

The square root of 2099813723 is about 45823.7244557882. The cubic root of 2099813723 is about 1280.5412999877.

The spelling of 2099813723 in words is "two billion, ninety-nine million, eight hundred thirteen thousand, seven hundred twenty-three".