21303112301 has 16 divisors (see below), whose sum is σ = 23372540928. Its totient is φ = 19329312000.

The previous prime is 21303112247. The next prime is 21303112307. The reversal of 21303112301 is 10321130312.

It is a cyclic number.

It is not a de Polignac number, because 21303112301 - 2³⁰ = 20229370477 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 21303112301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21303112307) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61751 + ... + 215451.

It is an arithmetic number, because the mean of its divisors is an integer number (1460783808).

Almost surely, 2^21303112301 is an apocalyptic number.

It is an amenable number.

21303112301 is a deficient number, since it is larger than the sum of its proper divisors (2069428627).

21303112301 is a wasteful number, since it uses less digits than its factorization.

21303112301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154012.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 21303112301 its reverse (10321130312), we get a palindrome (31624242613).

The spelling of 21303112301 in words is "twenty-one billion, three hundred three million, one hundred twelve thousand, three hundred one".