21302000101 has 4 divisors (see below), whose sum is σ = 21304921900. Its totient is φ = 21299078304.

The previous prime is 21302000077. The next prime is 21302000113. The reversal of 21302000101 is 10100020312.

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

It can be written as a sum of positive squares in 2 ways, for example, as 6436050625 + 14865949476 = 80225^2 + 121926^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21302000101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21302000191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1449936 + ... + 1464553.

It is an arithmetic number, because the mean of its divisors is an integer number (5326230475).

Almost surely, 2^21302000101 is an apocalyptic number.

It is an amenable number.

21302000101 is a deficient number, since it is larger than the sum of its proper divisors (2921799).

21302000101 is an equidigital number, since it uses as much as digits as its factorization.

21302000101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2921798.

The product of its (nonzero) digits is 12, while the sum is 10.

Adding to 21302000101 its reverse (10100020312), we get a palindrome (31402020413).

The spelling of 21302000101 in words is "twenty-one billion, three hundred two million, one hundred one", and thus it is an aban number.