21303242224034 has 4 divisors (see below), whose sum is σ = 31954863336054. Its totient is φ = 10651621112016.

The previous prime is 21303242224007. The next prime is 21303242224111. The reversal of 21303242224034 is 43042224230312.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 20643873863809 + 659368360225 = 4543553^2 + 812015^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 5325810556007 + ... + 5325810556010.

Almost surely, 2^{21303242224034} is an apocalyptic number.

21303242224034 is a deficient number, since it is larger than the sum of its proper divisors (10651621112020).

21303242224034 is a wasteful number, since it uses less digits than its factorization.

21303242224034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10651621112019.

The product of its (nonzero) digits is 55296, while the sum is 32.

Adding to 21303242224034 its reverse (43042224230312), we get a palindrome (64345466454346).

The spelling of 21303242224034 in words is "twenty-one trillion, three hundred three billion, two hundred forty-two million, two hundred twenty-four thousand, thirty-four".