21231112301 has 8 divisors (see below), whose sum is σ = 24293055360. Its totient is φ = 18176401008.

The previous prime is 21231112249. The next prime is 21231112361. The reversal of 21231112301 is 10321113212.

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 21231112301 - 2¹⁰ = 21231111277 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 21231112301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21231112361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1801646 + ... + 1813391.

It is an arithmetic number, because the mean of its divisors is an integer number (3036631920).

Almost surely, 2^21231112301 is an apocalyptic number.

It is an amenable number.

21231112301 is a deficient number, since it is larger than the sum of its proper divisors (3061943059).

21231112301 is an equidigital number, since it uses as much as digits as its factorization.

21231112301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3615883.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 21231112301 its reverse (10321113212), we get a palindrome (31552225513).

The spelling of 21231112301 in words is "twenty-one billion, two hundred thirty-one million, one hundred twelve thousand, three hundred one".