21023200002111 has 4 divisors (see below), whose sum is σ = 28030933336152. Its totient is φ = 14015466668072.

The previous prime is 21023200002083. The next prime is 21023200002121. The reversal of 21023200002111 is 11120000232012.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 21023200002111 - 2⁶ = 21023200002047 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21023200002121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3503866667016 + ... + 3503866667021.

It is an arithmetic number, because the mean of its divisors is an integer number (7007733334038).

Almost surely, 2^{21023200002111} is an apocalyptic number.

21023200002111 is a deficient number, since it is larger than the sum of its proper divisors (7007733334041).

21023200002111 is an equidigital number, since it uses as much as digits as its factorization.

21023200002111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7007733334040.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 21023200002111 its reverse (11120000232012), we get a palindrome (32143200234123).

The spelling of 21023200002111 in words is "twenty-one trillion, twenty-three billion, two hundred million, two thousand, one hundred eleven".