11421242133421 has 8 divisors (see below), whose sum is σ = 11479416284160. Its totient is φ = 11363069986128.

The previous prime is 11421242133397. The next prime is 11421242133449. The reversal of 11421242133421 is 12433124212411.

11421242133421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 11421242133421 - 2¹⁹ = 11421241609133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11421242133481) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11682420 + ... + 12622258.

It is an arithmetic number, because the mean of its divisors is an integer number (1434927035520).

Almost surely, 2^{11421242133421} is an apocalyptic number.

It is an amenable number.

11421242133421 is a deficient number, since it is larger than the sum of its proper divisors (58174150739).

11421242133421 is an equidigital number, since it uses as much as digits as its factorization.

11421242133421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1001723.

The product of its digits is 9216, while the sum is 31.

Adding to 11421242133421 its reverse (12433124212411), we get a palindrome (23854366345832).

The spelling of 11421242133421 in words is "eleven trillion, four hundred twenty-one billion, two hundred forty-two million, one hundred thirty-three thousand, four hundred twenty-one".