11844013 has 4 divisors (see below), whose sum is σ = 11878300. Its totient is φ = 11809728.

The previous prime is 11843999. The next prime is 11844029. The reversal of 11844013 is 31044811.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31044811 = 7 ⋅4434973.

It can be written as a sum of positive squares in 2 ways, for example, as 10673289 + 1170724 = 3267^2 + 1082^2 .

It is a cyclic number.

It is not a de Polignac number, because 11844013 - 2⁵ = 11843981 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 (11844043) 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, 16620 + ... + 17317.

It is an arithmetic number, because the mean of its divisors is an integer number (2969575).

Almost surely, 2^11844013 is an apocalyptic number.

It is an amenable number.

11844013 is a deficient number, since it is larger than the sum of its proper divisors (34287).

11844013 is an equidigital number, since it uses as much as digits as its factorization.

11844013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34286.

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 11844013 is about 3441.5131846326. The cubic root of 11844013 is about 227.9465158737.

Adding to 11844013 its reverse (31044811), we get a palindrome (42888824).

The spelling of 11844013 in words is "eleven million, eight hundred forty-four thousand, thirteen".