11421434111 has 8 divisors (see below), whose sum is σ = 11621351040. Its totient is φ = 11221728408.

The previous prime is 11421434021. The next prime is 11421434137. The reversal of 11421434111 is 11143412411.

11421434111 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 11421434111 - 2¹⁴ = 11421417727 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 (11421434161) 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 7 ways as a sum of consecutive naturals, for example, 58310 + ... + 161996.

It is an arithmetic number, because the mean of its divisors is an integer number (1452668880).

Almost surely, 2^11421434111 is an apocalyptic number.

11421434111 is a deficient number, since it is larger than the sum of its proper divisors (199916929).

11421434111 is a wasteful number, since it uses less digits than its factorization.

11421434111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105613.

The product of its digits is 384, while the sum is 23.

Adding to 11421434111 its reverse (11143412411), we get a palindrome (22564846522).

The spelling of 11421434111 in words is "eleven billion, four hundred twenty-one million, four hundred thirty-four thousand, one hundred eleven".