21113500200999 has 16 divisors (see below), whose sum is σ = 28315806371424. Its totient is φ = 13993440464000.

The previous prime is 21113500200967. The next prime is 21113500201061. The reversal of 21113500200999 is 99900200531112.

It is a cyclic number.

It is not a de Polignac number, because 21113500200999 - 2⁵ = 21113500200967 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 21113500200999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21113500202999) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7212409 + ... + 9708029.

It is an arithmetic number, because the mean of its divisors is an integer number (1769737898214).

Almost surely, 2^{21113500200999} is an apocalyptic number.

21113500200999 is a deficient number, since it is larger than the sum of its proper divisors (7202306170425).

21113500200999 is a wasteful number, since it uses less digits than its factorization.

21113500200999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2512098.

The product of its (nonzero) digits is 43740, while the sum is 42.

The spelling of 21113500200999 in words is "twenty-one trillion, one hundred thirteen billion, five hundred million, two hundred thousand, nine hundred ninety-nine".