11421010405 has 96 divisors (see below), whose sum is σ = 16940327040. Its totient is φ = 7359690240.

The previous prime is 11421010379. The next prime is 11421010417. The reversal of 11421010405 is 50401012411.

It is not a de Polignac number, because 11421010405 - 2⁷ = 11421010277 is a prime.

It is a super-2 number, since 2×11421010405² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 95 ways as a sum of consecutive naturals, for example, 63099415 + ... + 63099595.

It is an arithmetic number, because the mean of its divisors is an integer number (176461740).

Almost surely, 2^11421010405 is an apocalyptic number.

It is an amenable number.

11421010405 is a deficient number, since it is larger than the sum of its proper divisors (5519316635).

11421010405 is a wasteful number, since it uses less digits than its factorization.

11421010405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 419 (or 412 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 19.

Adding to 11421010405 its reverse (50401012411), we get a palindrome (61822022816).

The spelling of 11421010405 in words is "eleven billion, four hundred twenty-one million, ten thousand, four hundred five".