21300132321993 has 16 divisors (see below), whose sum is σ = 32479260368256. Its totient is φ = 12163285729920.

The previous prime is 21300132321991. The next prime is 21300132321997. The reversal of 21300132321993 is 39912323100312.

It is not a de Polignac number, because 21300132321993 - 2¹ = 21300132321991 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21300132321991) 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 15 ways as a sum of consecutive naturals, for example, 342403746 + ... + 342465947.

It is an arithmetic number, because the mean of its divisors is an integer number (2029953773016).

Almost surely, 2^{21300132321993} is an apocalyptic number.

It is an amenable number.

21300132321993 is a deficient number, since it is larger than the sum of its proper divisors (11179128046263).

21300132321993 is a wasteful number, since it uses less digits than its factorization.

21300132321993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 684871184.

The product of its (nonzero) digits is 52488, while the sum is 39.

The spelling of 21300132321993 in words is "twenty-one trillion, three hundred billion, one hundred thirty-two million, three hundred twenty-one thousand, nine hundred ninety-three".