21232230301 has 4 divisors (see below), whose sum is σ = 21233217532. Its totient is φ = 21231243072.

The previous prime is 21232230293. The next prime is 21232230319. The reversal of 21232230301 is 10303223212.

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 17023464676 + 4208765625 = 130474^2 + 64875^2 .

It is a cyclic number.

It is not a de Polignac number, because 21232230301 - 2³ = 21232230293 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 (21232230391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 460620 + ... + 504613.

It is an arithmetic number, because the mean of its divisors is an integer number (5308304383).

Almost surely, 2^21232230301 is an apocalyptic number.

It is an amenable number.

21232230301 is a deficient number, since it is larger than the sum of its proper divisors (987231).

21232230301 is an equidigital number, since it uses as much as digits as its factorization.

21232230301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 987230.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 21232230301 its reverse (10303223212), we get a palindrome (31535453513).

The spelling of 21232230301 in words is "twenty-one billion, two hundred thirty-two million, two hundred thirty thousand, three hundred one".