11113711 has 4 divisors (see below), whose sum is σ = 12701392. Its totient is φ = 9526032.

The previous prime is 11113709. The next prime is 11113721. The reversal of 11113711 is 11731111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11731111 = 7 ⋅1675873.

It is a cyclic number.

It is not a de Polignac number, because 11113711 - 2¹ = 11113709 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 (11113721) 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, 793830 + ... + 793843.

It is an arithmetic number, because the mean of its divisors is an integer number (3175348).

Almost surely, 2^11113711 is an apocalyptic number.

11113711 is a deficient number, since it is larger than the sum of its proper divisors (1587681).

11113711 is an equidigital number, since it uses as much as digits as its factorization.

11113711 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1587680.

The product of its digits is 21, while the sum is 16.

The square root of 11113711 is about 3333.7232938563. The cubic root of 11113711 is about 223.1617198496.

Adding to 11113711 its reverse (11731111), we get a palindrome (22844822).

The spelling of 11113711 in words is "eleven million, one hundred thirteen thousand, seven hundred eleven".