2100100443 has 16 divisors (see below), whose sum is σ = 3203414016. Its totient is φ = 1198834560.

The previous prime is 2100100441. The next prime is 2100100447. The reversal of 2100100443 is 3440010012.

It is not a de Polignac number, because 2100100443 - 2¹ = 2100100441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2100100441) 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, 29646 + ... + 71267.

It is an arithmetic number, because the mean of its divisors is an integer number (200213376).

Almost surely, 2^2100100443 is an apocalyptic number.

2100100443 is a deficient number, since it is larger than the sum of its proper divisors (1103313573).

2100100443 is a wasteful number, since it uses less digits than its factorization.

2100100443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101914.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 2100100443 is about 45826.8528594317. The cubic root of 2100100443 is about 1280.5995813625.

Adding to 2100100443 its reverse (3440010012), we get a palindrome (5540110455).

The spelling of 2100100443 in words is "two billion, one hundred million, one hundred thousand, four hundred forty-three".