11985043 has 4 divisors (see below), whose sum is σ = 13697200. Its totient is φ = 10272888.

The previous prime is 11985041. The next prime is 11985073. The reversal of 11985043 is 34058911.

11985043 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11985043 - 2¹ = 11985041 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11984996 and 11985014.

It is not an unprimeable number, because it can be changed into a prime (11985041) 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, 856068 + ... + 856081.

It is an arithmetic number, because the mean of its divisors is an integer number (3424300).

Almost surely, 2^11985043 is an apocalyptic number.

11985043 is a deficient number, since it is larger than the sum of its proper divisors (1712157).

11985043 is an equidigital number, since it uses as much as digits as its factorization.

11985043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1712156.

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 11985043 is about 3461.9420850153. The cubic root of 11985043 is about 228.8476895698.

It can be divided in two parts, 1198 and 5043, that added together give a square (6241 = 79²).

The spelling of 11985043 in words is "eleven million, nine hundred eighty-five thousand, forty-three".