13420012111 has 6 divisors (see below), whose sum is σ = 14750922536. Its totient is φ = 12200010900.

The previous prime is 13420012087. The next prime is 13420012183. The reversal of 13420012111 is 11121002431.

It is a de Polignac number, because none of the positive numbers 2^k-13420012111 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 (13420012811) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 55454475 + ... + 55454716.

Almost surely, 2^13420012111 is an apocalyptic number.

13420012111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

13420012111 is a deficient number, since it is larger than the sum of its proper divisors (1330910425).

13420012111 is a wasteful number, since it uses less digits than its factorization.

13420012111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110909213 (or 110909202 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 13420012111 its reverse (11121002431), we get a palindrome (24541014542).

The spelling of 13420012111 in words is "thirteen billion, four hundred twenty million, twelve thousand, one hundred eleven".