2105119100 has 36 divisors (see below), whose sum is σ = 5220697104. Its totient is φ = 721754880.

The previous prime is 2105119069. The next prime is 2105119109. The reversal of 2105119100 is 19115012.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2105119109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1502957 + ... + 1504356.

It is an arithmetic number, because the mean of its divisors is an integer number (145019364).

Almost surely, 2^2105119100 is an apocalyptic number.

2105119100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2105119100 is an abundant number, since it is smaller than the sum of its proper divisors (3115578004).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2105119100 is a wasteful number, since it uses less digits than its factorization.

2105119100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3007334 (or 3007327 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 20.

The square root of 2105119100 is about 45881.5769127435. The cubic root of 2105119100 is about 1281.6188623475.

The spelling of 2105119100 in words is "two billion, one hundred five million, one hundred nineteen thousand, one hundred".