21002300111001 has 96 divisors (see below), whose sum is σ = 32147315448192. Its totient is φ = 12094482273280.

The previous prime is 21002300110937. The next prime is 21002300111029. The reversal of 21002300111001 is 10011100320012.

It is not a de Polignac number, because 21002300111001 - 2⁶ = 21002300110937 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21002300111071) 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 95 ways as a sum of consecutive naturals, for example, 1621417141 + ... + 1621430093.

It is an arithmetic number, because the mean of its divisors is an integer number (334867869252).

Almost surely, 2^{21002300111001} is an apocalyptic number.

It is an amenable number.

21002300111001 is a deficient number, since it is larger than the sum of its proper divisors (11145015337191).

21002300111001 is a wasteful number, since it uses less digits than its factorization.

21002300111001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13623 (or 13600 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 12.

Adding to 21002300111001 its reverse (10011100320012), we get a palindrome (31013400431013).

The spelling of 21002300111001 in words is "twenty-one trillion, two billion, three hundred million, one hundred eleven thousand, one".