21412304411 has 8 divisors (see below), whose sum is σ = 22676757504. Its totient is φ = 20175641640.

The previous prime is 21412304387. The next prime is 21412304413. The reversal of 21412304411 is 11440321412.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21412304411 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21412304413) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 6945995 + ... + 6949076.

It is an arithmetic number, because the mean of its divisors is an integer number (2834594688).

Almost surely, 2^21412304411 is an apocalyptic number.

21412304411 is a deficient number, since it is larger than the sum of its proper divisors (1264453093).

21412304411 is a wasteful number, since it uses less digits than its factorization.

21412304411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13895161.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 21412304411 its reverse (11440321412), we get a palindrome (32852625823).

The spelling of 21412304411 in words is "twenty-one billion, four hundred twelve million, three hundred four thousand, four hundred eleven".