21113200110009 has 32 divisors (see below), whose sum is σ = 32374825528320. Its totient is φ = 11988882510912.

The previous prime is 21113200109941. The next prime is 21113200110011. The reversal of 21113200110009 is 90001100231112.

It is a happy number.

It is not a de Polignac number, because 21113200110009 - 2⁹ = 21113200109497 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (21113200118009) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5721414 + ... + 8658000.

It is an arithmetic number, because the mean of its divisors is an integer number (1011713297760).

Almost surely, 2^{21113200110009} is an apocalyptic number.

It is an amenable number.

21113200110009 is a deficient number, since it is larger than the sum of its proper divisors (11261625418311).

21113200110009 is a wasteful number, since it uses less digits than its factorization.

21113200110009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2938749.

The product of its (nonzero) digits is 108, while the sum is 21.

The spelling of 21113200110009 in words is "twenty-one trillion, one hundred thirteen billion, two hundred million, one hundred ten thousand, nine".