211304100 has 72 divisors (see below), whose sum is σ = 698719168. Its totient is φ = 48297600.

The previous prime is 211304089. The next prime is 211304113. The reversal of 211304100 is 1403112.

It is a happy number.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 48211 + ... + 52410.

Almost surely, 2^211304100 is an apocalyptic number.

211304100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211304100 is an abundant number, since it is smaller than the sum of its proper divisors (487415068).

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

211304100 is a wasteful number, since it uses less digits than its factorization.

211304100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100645 (or 100638 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 211304100 is about 14536.3028311879. The cubic root of 211304100 is about 595.6200489600.

Adding to 211304100 its reverse (1403112), we get a palindrome (212707212).

The spelling of 211304100 in words is "two hundred eleven million, three hundred four thousand, one hundred".