2100423100 has 54 divisors (see below), whose sum is σ = 4841868920. Its totient is φ = 790736640.

The previous prime is 2100423079. The next prime is 2100423103. The reversal of 2100423100 is 13240012.

It is a super-2 number, since 2×2100423100² = 8823554398027220000, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2100423103) 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 17 ways as a sum of consecutive naturals, for example, 7440 + ... + 65239.

Almost surely, 2^2100423100 is an apocalyptic number.

2100423100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2100423100 is an abundant number, since it is smaller than the sum of its proper divisors (2741445820).

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

2100423100 is a wasteful number, since it uses less digits than its factorization.

2100423100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72727 (or 72703 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 2100423100 is about 45830.3731165261. The cubic root of 2100423100 is about 1280.6651612829.

Adding to 2100423100 its reverse (13240012), we get a palindrome (2113663112).

The spelling of 2100423100 in words is "two billion, one hundred million, four hundred twenty-three thousand, one hundred".