21011443343410 has 64 divisors (see below), whose sum is σ = 41598091551744. Its totient is φ = 7592709657600.

The previous prime is 21011443343393. The next prime is 21011443343453. The reversal of 21011443343410 is 1434334411012.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 210567930 + ... + 210667690.

It is an arithmetic number, because the mean of its divisors is an integer number (649970180496).

Almost surely, 2^{21011443343410} is an apocalyptic number.

21011443343410 is a deficient number, since it is larger than the sum of its proper divisors (20586648208334).

21011443343410 is a wasteful number, since it uses less digits than its factorization.

21011443343410 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134299.

The product of its (nonzero) digits is 13824, while the sum is 31.

Adding to 21011443343410 its reverse (1434334411012), we get a palindrome (22445777754422).

The spelling of 21011443343410 in words is "twenty-one trillion, eleven billion, four hundred forty-three million, three hundred forty-three thousand, four hundred ten".