21232323241 has 4 divisors (see below), whose sum is σ = 21238447300. Its totient is φ = 21226199184.

The previous prime is 21232323223. The next prime is 21232323257. The reversal of 21232323241 is 14232323212.

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 5955363241 + 15276960000 = 77171^2 + 123600^2 .

It is a cyclic number.

It is not a de Polignac number, because 21232323241 - 2¹⁷ = 21232192169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21232323041) 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 3 ways as a sum of consecutive naturals, for example, 3056826 + ... + 3063763.

It is an arithmetic number, because the mean of its divisors is an integer number (5309611825).

Almost surely, 2^21232323241 is an apocalyptic number.

It is an amenable number.

21232323241 is a deficient number, since it is larger than the sum of its proper divisors (6124059).

21232323241 is an equidigital number, since it uses as much as digits as its factorization.

21232323241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6124058.

The product of its digits is 3456, while the sum is 25.

Adding to 21232323241 its reverse (14232323212), we get a palindrome (35464646453).

The spelling of 21232323241 in words is "twenty-one billion, two hundred thirty-two million, three hundred twenty-three thousand, two hundred forty-one".