12013711 has 4 divisors (see below), whose sum is σ = 12093424. Its totient is φ = 11934000.

The previous prime is 12013699. The next prime is 12013733. The reversal of 12013711 is 11731021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11731021 = 617 ⋅19013.

It is a cyclic number.

It is not a de Polignac number, because 12013711 - 2⁷ = 12013583 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 (12013411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39630 + ... + 39931.

It is an arithmetic number, because the mean of its divisors is an integer number (3023356).

Almost surely, 2^12013711 is an apocalyptic number.

12013711 is a deficient number, since it is larger than the sum of its proper divisors (79713).

12013711 is an equidigital number, since it uses as much as digits as its factorization.

12013711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79712.

The product of its (nonzero) digits is 42, while the sum is 16.

The square root of 12013711 is about 3466.0800625490. The cubic root of 12013711 is about 229.0300107500.

Adding to 12013711 its reverse (11731021), we get a palindrome (23744732).

It can be divided in two parts, 120 and 13711, that added together give a palindrome (13831).

The spelling of 12013711 in words is "twelve million, thirteen thousand, seven hundred eleven".