2100992003 has 4 divisors (see below), whose sum is σ = 2291991288. Its totient is φ = 1909992720.

The previous prime is 2100991999. The next prime is 2100992011. The reversal of 2100992003 is 3002990012.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2100992003 - 2² = 2100991999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2100992503) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 95499626 + ... + 95499647.

It is an arithmetic number, because the mean of its divisors is an integer number (572997822).

Almost surely, 2^2100992003 is an apocalyptic number.

2100992003 is a deficient number, since it is larger than the sum of its proper divisors (190999285).

2100992003 is a wasteful number, since it uses less digits than its factorization.

2100992003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190999284.

The product of its (nonzero) digits is 972, while the sum is 26.

The square root of 2100992003 is about 45836.5793117244. The cubic root of 2100992003 is about 1280.7807742569.

The spelling of 2100992003 in words is "two billion, one hundred million, nine hundred ninety-two thousand, three".