21041313342344 has 16 divisors (see below), whose sum is σ = 39470976139920. Its totient is φ = 10515719705040.

The previous prime is 21041313342341. The next prime is 21041313342377. The reversal of 21041313342344 is 44324331314012.

It is not an unprimeable number, because it can be changed into a prime (21041313342341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 617102654 + ... + 617136749.

It is an arithmetic number, because the mean of its divisors is an integer number (2466936008745).

Almost surely, 2^{21041313342344} is an apocalyptic number.

It is an amenable number.

21041313342344 is a deficient number, since it is larger than the sum of its proper divisors (18429662797576).

21041313342344 is a wasteful number, since it uses less digits than its factorization.

21041313342344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1234241540 (or 1234241536 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 35.

Adding to 21041313342344 its reverse (44324331314012), we get a palindrome (65365644656356).

The spelling of 21041313342344 in words is "twenty-one trillion, forty-one billion, three hundred thirteen million, three hundred forty-two thousand, three hundred forty-four".