21441344302 has 16 divisors (see below), whose sum is σ = 37611395712. Its totient is φ = 8975446200.

The previous prime is 21441344291. The next prime is 21441344357. The reversal of 21441344302 is 20344314412.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17807824 + ... + 17809027.

It is an arithmetic number, because the mean of its divisors is an integer number (2350712232).

Almost surely, 2^21441344302 is an apocalyptic number.

21441344302 is a deficient number, since it is larger than the sum of its proper divisors (16170051410).

21441344302 is a wasteful number, since it uses less digits than its factorization.

21441344302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35616903.

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 21441344302 its reverse (20344314412), we get a palindrome (41785658714).

The spelling of 21441344302 in words is "twenty-one billion, four hundred forty-one million, three hundred forty-four thousand, three hundred two".