2100323100 has 36 divisors (see below), whose sum is σ = 6076935704. Its totient is φ = 560086080.

The previous prime is 2100323087. The next prime is 2100323117. The reversal of 2100323100 is 13230012.

It is a happy number.

It is a super-2 number, since 2×2100323100² = 8822714248787220000, which contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3500239 + ... + 3500838.

Almost surely, 2^2100323100 is an apocalyptic number.

2100323100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2100323100 is an abundant number, since it is smaller than the sum of its proper divisors (3976612604).

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

2100323100 is a wasteful number, since it uses less digits than its factorization.

2100323100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7001094 (or 7001087 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 2100323100 is about 45829.2821239871. The cubic root of 2100323100 is about 1280.6448370367.

Adding to 2100323100 its reverse (13230012), we get a palindrome (2113553112).

The spelling of 2100323100 in words is "two billion, one hundred million, three hundred twenty-three thousand, one hundred".