2213312443 has 4 divisors (see below), whose sum is σ = 2213428408. Its totient is φ = 2213196480.

The previous prime is 2213312419. The next prime is 2213312447. The reversal of 2213312443 is 3442133122.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 3442133122 = 2 ⋅1721066561.

It is a cyclic number.

It is not a de Polignac number, because 2213312443 - 2⁵ = 2213312411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2213312447) 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, 21846 + ... + 70027.

It is an arithmetic number, because the mean of its divisors is an integer number (553357102).

Almost surely, 2^2213312443 is an apocalyptic number.

2213312443 is a deficient number, since it is larger than the sum of its proper divisors (115965).

2213312443 is an equidigital number, since it uses as much as digits as its factorization.

2213312443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115964.

The product of its digits is 3456, while the sum is 25.

The square root of 2213312443 is about 47045.8546845522. The cubic root of 2213312443 is about 1303.2095140268.

Adding to 2213312443 its reverse (3442133122), we get a palindrome (5655445565).

The spelling of 2213312443 in words is "two billion, two hundred thirteen million, three hundred twelve thousand, four hundred forty-three".