11880243 has 8 divisors (see below), whose sum is σ = 17600400. Its totient is φ = 7920144.

The previous prime is 11880241. The next prime is 11880251. The reversal of 11880243 is 34208811.

It is not a de Polignac number, because 11880243 - 2¹ = 11880241 is a prime.

It is a super-2 number, since 2×11880243² = 282280347478098, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 440009 = 11880243 / (1 + 1 + 8 + 8 + 0 + 2 + 4 + 3).

It is not an unprimeable number, because it can be changed into a prime (11880241) 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 7 ways as a sum of consecutive naturals, for example, 219978 + ... + 220031.

It is an arithmetic number, because the mean of its divisors is an integer number (2200050).

Almost surely, 2^11880243 is an apocalyptic number.

11880243 is a deficient number, since it is larger than the sum of its proper divisors (5720157).

11880243 is an equidigital number, since it uses as much as digits as its factorization.

11880243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 440018 (or 440012 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 11880243 is about 3446.7728384679. The cubic root of 11880243 is about 228.1787033884.

The spelling of 11880243 in words is "eleven million, eight hundred eighty thousand, two hundred forty-three".