11983213 has 4 divisors (see below), whose sum is σ = 13072608. Its totient is φ = 10893820.

The previous prime is 11983211. The next prime is 11983217. The reversal of 11983213 is 31238911.

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.

It is a cyclic number.

It is not a de Polignac number, because 11983213 - 2¹ = 11983211 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 (11983211) 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, 544681 + ... + 544702.

It is an arithmetic number, because the mean of its divisors is an integer number (3268152).

Almost surely, 2^11983213 is an apocalyptic number.

It is an amenable number.

11983213 is a deficient number, since it is larger than the sum of its proper divisors (1089395).

11983213 is a wasteful number, since it uses less digits than its factorization.

11983213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1089394.

The product of its digits is 1296, while the sum is 28.

The square root of 11983213 is about 3461.6777724104. The cubic root of 11983213 is about 228.8360413682.

The spelling of 11983213 in words is "eleven million, nine hundred eighty-three thousand, two hundred thirteen".