21113000210 has 64 divisors (see below), whose sum is σ = 39718879200. Its totient is φ = 8070451200.

The previous prime is 21113000201. The next prime is 21113000221. The reversal of 21113000210 is 1200031112.

It can be written as a sum of positive squares in 16 ways, for example, as 426794281 + 20686205929 = 20659^2 + 143827^2 .

It is a junction number, because it is equal to n+sod(n) for n = 21113000191 and 21113000200.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12649256 + ... + 12650924.

Almost surely, 2^21113000210 is an apocalyptic number.

21113000210 is a deficient number, since it is larger than the sum of its proper divisors (18605878990).

21113000210 is a wasteful number, since it uses less digits than its factorization.

21113000210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2127.

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

Adding to 21113000210 its reverse (1200031112), we get a palindrome (22313031322).

The spelling of 21113000210 in words is "twenty-one billion, one hundred thirteen million, two hundred ten", and thus it is an aban number.