11968013 has 4 divisors (see below), whose sum is σ = 11976000. Its totient is φ = 11960028.

The previous prime is 11968007. The next prime is 11968031. The reversal of 11968013 is 31086911.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 11968013 - 2⁴ = 11967997 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 (11968063) 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 3 ways as a sum of consecutive naturals, for example, 995 + ... + 4992.

It is an arithmetic number, because the mean of its divisors is an integer number (2994000).

Almost surely, 2^11968013 is an apocalyptic number.

It is an amenable number.

11968013 is a deficient number, since it is larger than the sum of its proper divisors (7987).

11968013 is an equidigital number, since it uses as much as digits as its factorization.

11968013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7986.

The product of its (nonzero) digits is 1296, while the sum is 29.

The square root of 11968013 is about 3459.4816085651. The cubic root of 11968013 is about 228.7392454159.

The spelling of 11968013 in words is "eleven million, nine hundred sixty-eight thousand, thirteen".