21242441231344 has 20 divisors (see below), whose sum is σ = 41250135610296. Its totient is φ = 10597244944832.

The previous prime is 21242441231321. The next prime is 21242441231383. The reversal of 21242441231344 is 44313214424212.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1498472119 + ... + 1498486294.

Almost surely, 2^{21242441231344} is an apocalyptic number.

It is an amenable number.

21242441231344 is a deficient number, since it is larger than the sum of its proper divisors (20007694378952).

21242441231344 is a wasteful number, since it uses less digits than its factorization.

21242441231344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2996958864 (or 2996958858 counting only the distinct ones).

The product of its digits is 147456, while the sum is 37.

Adding to 21242441231344 its reverse (44313214424212), we get a palindrome (65555655655556).

The spelling of 21242441231344 in words is "twenty-one trillion, two hundred forty-two billion, four hundred forty-one million, two hundred thirty-one thousand, three hundred forty-four".