2101104120 has 64 divisors (see below), whose sum is σ = 6674101920. Its totient is φ = 527335424.

The previous prime is 2101104097. The next prime is 2101104133. The reversal of 2101104120 is 214011012.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 2101104096 and 2101104105.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 512937 + ... + 517016.

Almost surely, 2^2101104120 is an apocalyptic number.

2101104120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2101104120 is an abundant number, since it is smaller than the sum of its proper divisors (4572997800).

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

2101104120 is a wasteful number, since it uses less digits than its factorization.

2101104120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1029984 (or 1029980 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 2101104120 is about 45837.8023033391. The cubic root of 2101104120 is about 1280.8035563116.

Adding to 2101104120 its reverse (214011012), we get a palindrome (2315115132).

The spelling of 2101104120 in words is "two billion, one hundred one million, one hundred four thousand, one hundred twenty".