14020421111 has 4 divisors (see below), whose sum is σ = 14151453192. Its totient is φ = 13889389032.

The previous prime is 14020421089. The next prime is 14020421143. The reversal of 14020421111 is 11112402041.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-14020421111 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 14020421111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14020421711) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65515880 + ... + 65516093.

It is an arithmetic number, because the mean of its divisors is an integer number (3537863298).

Almost surely, 2^14020421111 is an apocalyptic number.

14020421111 is a deficient number, since it is larger than the sum of its proper divisors (131032081).

14020421111 is a wasteful number, since it uses less digits than its factorization.

14020421111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131032080.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 14020421111 its reverse (11112402041), we get a palindrome (25132823152).

The spelling of 14020421111 in words is "fourteen billion, twenty million, four hundred twenty-one thousand, one hundred eleven".