11113943 has 4 divisors (see below), whose sum is σ = 11175528. Its totient is φ = 11052360.

The previous prime is 11113933. The next prime is 11114087. The reversal of 11113943 is 34931111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34931111 = 103 ⋅339137.

It is a cyclic number.

It is not a de Polignac number, because 11113943 - 2¹⁶ = 11048407 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 (11113913) 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, 30521 + ... + 30882.

It is an arithmetic number, because the mean of its divisors is an integer number (2793882).

Almost surely, 2^11113943 is an apocalyptic number.

11113943 is a deficient number, since it is larger than the sum of its proper divisors (61585).

11113943 is an equidigital number, since it uses as much as digits as its factorization.

11113943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61584.

The product of its digits is 324, while the sum is 23.

The square root of 11113943 is about 3333.7580896040. The cubic root of 11113943 is about 223.1632726810.

The spelling of 11113943 in words is "eleven million, one hundred thirteen thousand, nine hundred forty-three".