21232340301 has 4 divisors (see below), whose sum is σ = 28309787072. Its totient is φ = 14154893532.

The previous prime is 21232340263. The next prime is 21232340303. The reversal of 21232340301 is 10304323212.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 21232340301 - 2¹⁹ = 21231816013 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 (21232340303) 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, 3538723381 + ... + 3538723386.

It is an arithmetic number, because the mean of its divisors is an integer number (7077446768).

Almost surely, 2^21232340301 is an apocalyptic number.

It is an amenable number.

21232340301 is a deficient number, since it is larger than the sum of its proper divisors (7077446771).

21232340301 is an equidigital number, since it uses as much as digits as its factorization.

21232340301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7077446770.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 21232340301 its reverse (10304323212), we get a palindrome (31536663513).

The spelling of 21232340301 in words is "twenty-one billion, two hundred thirty-two million, three hundred forty thousand, three hundred one".