11985012 has 36 divisors (see below), whose sum is σ = 32627140. Its totient is φ = 3687552.

The previous prime is 11984971. The next prime is 11985019. The reversal of 11985012 is 21058911.

11985012 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 8088336 + 3896676 = 2844^2 + 1974^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11985019) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12337 + ... + 13272.

Almost surely, 2^11985012 is an apocalyptic number.

11985012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11985012 is an abundant number, since it is smaller than the sum of its proper divisors (20642128).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11985012 is a wasteful number, since it uses less digits than its factorization.

11985012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25632 (or 25627 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 27.

The square root of 11985012 is about 3461.9376077567. The cubic root of 11985012 is about 228.8474922604.

The spelling of 11985012 in words is "eleven million, nine hundred eighty-five thousand, twelve".