21141242411 has 16 divisors (see below), whose sum is σ = 23033354400. Its totient is φ = 19327795200.

The previous prime is 21141242399. The next prime is 21141242467. The reversal of 21141242411 is 11424214112.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21141242411 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21141242491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1170731 + ... + 1188651.

It is an arithmetic number, because the mean of its divisors is an integer number (1439584650).

Almost surely, 2^21141242411 is an apocalyptic number.

21141242411 is a deficient number, since it is larger than the sum of its proper divisors (1892111989).

21141242411 is a wasteful number, since it uses less digits than its factorization.

21141242411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20110.

The product of its digits is 512, while the sum is 23.

Adding to 21141242411 its reverse (11424214112), we get a palindrome (32565456523).

The spelling of 21141242411 in words is "twenty-one billion, one hundred forty-one million, two hundred forty-two thousand, four hundred eleven".