21300132111 has 4 divisors (see below), whose sum is σ = 28400176152. Its totient is φ = 14200088072.

The previous prime is 21300132107. The next prime is 21300132121. The reversal of 21300132111 is 11123100312.

It is a happy number.

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 21300132111 - 2² = 21300132107 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21300132121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3550022016 + ... + 3550022021.

It is an arithmetic number, because the mean of its divisors is an integer number (7100044038).

Almost surely, 2^21300132111 is an apocalyptic number.

21300132111 is a deficient number, since it is larger than the sum of its proper divisors (7100044041).

21300132111 is an equidigital number, since it uses as much as digits as its factorization.

21300132111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7100044040.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 21300132111 its reverse (11123100312), we get a palindrome (32423232423).

The spelling of 21300132111 in words is "twenty-one billion, three hundred million, one hundred thirty-two thousand, one hundred eleven".