11113421011999 has 16 divisors (see below), whose sum is σ = 11675938834944. Its totient is φ = 10557544140000.

The previous prime is 11113421011981. The next prime is 11113421012051. The reversal of 11113421011999 is 99911012431111.

It is a cyclic number.

It is not a de Polignac number, because 11113421011999 - 2⁹ = 11113421011487 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 (11113421011909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15808917 + ... + 16496929.

It is an arithmetic number, because the mean of its divisors is an integer number (729746177184).

Almost surely, 2^{11113421011999} is an apocalyptic number.

11113421011999 is a deficient number, since it is larger than the sum of its proper divisors (562517822945).

11113421011999 is a wasteful number, since it uses less digits than its factorization.

11113421011999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 692838.

The product of its (nonzero) digits is 17496, while the sum is 43.

The spelling of 11113421011999 in words is "eleven trillion, one hundred thirteen billion, four hundred twenty-one million, eleven thousand, nine hundred ninety-nine".