21303023101 has 8 divisors (see below), whose sum is σ = 21664610240. Its totient is φ = 20944412352.

The previous prime is 21303023057. The next prime is 21303023191. The reversal of 21303023101 is 10132030312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21303023101 - 2¹⁹ = 21302498813 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 (21303023191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 729660 + ... + 758293.

It is an arithmetic number, because the mean of its divisors is an integer number (2708076280).

Almost surely, 2^21303023101 is an apocalyptic number.

It is an amenable number.

21303023101 is a deficient number, since it is larger than the sum of its proper divisors (361587139).

21303023101 is a wasteful number, since it uses less digits than its factorization.

21303023101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1488195.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 21303023101 its reverse (10132030312), we get a palindrome (31435053413).

The spelling of 21303023101 in words is "twenty-one billion, three hundred three million, twenty-three thousand, one hundred one".