11243963 has 4 divisors (see below), whose sum is σ = 11518248. Its totient is φ = 10969680.

The previous prime is 11243957. The next prime is 11243983. The reversal of 11243963 is 36934211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36934211 = 521 ⋅70891.

It is a cyclic number.

It is not a de Polignac number, because 11243963 - 2¹² = 11239867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11243923) 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, 137081 + ... + 137162.

It is an arithmetic number, because the mean of its divisors is an integer number (2879562).

Almost surely, 2^11243963 is an apocalyptic number.

11243963 is a deficient number, since it is larger than the sum of its proper divisors (274285).

11243963 is an equidigital number, since it uses as much as digits as its factorization.

11243963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274284.

The product of its digits is 3888, while the sum is 29.

The square root of 11243963 is about 3353.2019026596. The cubic root of 11243963 is about 224.0301498002.

The spelling of 11243963 in words is "eleven million, two hundred forty-three thousand, nine hundred sixty-three".