2111203100 has 18 divisors (see below), whose sum is σ = 4581310944. Its totient is φ = 844481200.

The previous prime is 2111203063. The next prime is 2111203109. The reversal of 2111203100 is 13021112.

It is a super-2 number, since 2×2111203100² = 8914357058899220000, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2111203109) 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 5 ways as a sum of consecutive naturals, for example, 10555916 + ... + 10556115.

Almost surely, 2^2111203100 is an apocalyptic number.

2111203100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2111203100 is an abundant number, since it is smaller than the sum of its proper divisors (2470107844).

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

2111203100 is a wasteful number, since it uses less digits than its factorization.

2111203100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21112045 (or 21112038 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 2111203100 is about 45947.8301990420. The cubic root of 2111203100 is about 1282.8523427520.

Adding to 2111203100 its reverse (13021112), we get a palindrome (2124224212).

The spelling of 2111203100 in words is "two billion, one hundred eleven million, two hundred three thousand, one hundred".