2100011103 has 72 divisors (see below), whose sum is σ = 3318994224. Its totient is φ = 1326274560.

The previous prime is 2100011093. The next prime is 2100011117. The reversal of 2100011103 is 3011100012.

It is not a de Polignac number, because 2100011103 - 2⁴ = 2100011087 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2100011143) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 21649551 + ... + 21649647.

It is an arithmetic number, because the mean of its divisors is an integer number (46097142).

Almost surely, 2^2100011103 is an apocalyptic number.

2100011103 is a deficient number, since it is larger than the sum of its proper divisors (1218983121).

2100011103 is an frugal number, since it uses more digits than its factorization.

2100011103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247 (or 194 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 9.

The square root of 2100011103 is about 45825.8780930600. The cubic root of 2100011103 is about 1280.5814218518.

Adding to 2100011103 its reverse (3011100012), we get a palindrome (5111111115).

The spelling of 2100011103 in words is "two billion, one hundred million, eleven thousand, one hundred three".