13421911111 has 24 divisors (see below), whose sum is σ = 16501176320. Its totient is φ = 10690572672.

The previous prime is 13421911099. The next prime is 13421911117. The reversal of 13421911111 is 11111912431.

It is not a de Polignac number, because 13421911111 - 2⁵ = 13421911079 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 (13421911117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 117826 + ... + 201808.

Almost surely, 2^13421911111 is an apocalyptic number.

13421911111 is a deficient number, since it is larger than the sum of its proper divisors (3079265209).

13421911111 is an equidigital number, since it uses as much as digits as its factorization.

13421911111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84103 (or 84086 counting only the distinct ones).

The product of its digits is 216, while the sum is 25.

The spelling of 13421911111 in words is "thirteen billion, four hundred twenty-one million, nine hundred eleven thousand, one hundred eleven".