11988013 has 8 divisors (see below), whose sum is σ = 12425600. Its totient is φ = 11557728.

The previous prime is 11987981. The next prime is 11988029. The reversal of 11988013 is 31088911.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11988013 - 2⁵ = 11987981 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 (11998013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1633 + ... + 5161.

It is an arithmetic number, because the mean of its divisors is an integer number (1553200).

Almost surely, 2^11988013 is an apocalyptic number.

It is an amenable number.

11988013 is a deficient number, since it is larger than the sum of its proper divisors (437587).

11988013 is an equidigital number, since it uses as much as digits as its factorization.

11988013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3651.

The product of its (nonzero) digits is 1728, while the sum is 31.

The square root of 11988013 is about 3462.3710084276. The cubic root of 11988013 is about 228.8665915045.

The spelling of 11988013 in words is "eleven million, nine hundred eighty-eight thousand, thirteen".