13420732111 has 4 divisors (see below), whose sum is σ = 13559090272. Its totient is φ = 13282373952.

The previous prime is 13420732109. The next prime is 13420732159. The reversal of 13420732111 is 11123702431.

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

It is a cyclic number.

It is not a de Polignac number, because 13420732111 - 2¹ = 13420732109 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 (13420732411) 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, 69178935 + ... + 69179128.

It is an arithmetic number, because the mean of its divisors is an integer number (3389772568).

Almost surely, 2^13420732111 is an apocalyptic number.

13420732111 is a deficient number, since it is larger than the sum of its proper divisors (138358161).

13420732111 is an equidigital number, since it uses as much as digits as its factorization.

13420732111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138358160.

The product of its (nonzero) digits is 1008, while the sum is 25.

The spelling of 13420732111 in words is "thirteen billion, four hundred twenty million, seven hundred thirty-two thousand, one hundred eleven".