21110200311113 has 12 divisors (see below), whose sum is σ = 22425218496240. Its totient is φ = 19868250149952.

The previous prime is 21110200311001. The next prime is 21110200311139. The reversal of 21110200311113 is 31111300201112.

It is not a de Polignac number, because 21110200311113 - 2¹⁸ = 21110200048969 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21110200311091 and 21110200311100.

It is not an unprimeable number, because it can be changed into a prime (21110200311173) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 42909758 + ... + 43398936.

It is an arithmetic number, because the mean of its divisors is an integer number (1868768208020).

Almost surely, 2^{21110200311113} is an apocalyptic number.

It is an amenable number.

21110200311113 is a deficient number, since it is larger than the sum of its proper divisors (1315018185127).

21110200311113 is a wasteful number, since it uses less digits than its factorization.

21110200311113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 638536 (or 638519 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 17.

Adding to 21110200311113 its reverse (31111300201112), we get a palindrome (52221500512225).

The spelling of 21110200311113 in words is "twenty-one trillion, one hundred ten billion, two hundred million, three hundred eleven thousand, one hundred thirteen".