2213440123 has 4 divisors (see below), whose sum is σ = 2244615408. Its totient is φ = 2182264840.

The previous prime is 2213440087. The next prime is 2213440127. The reversal of 2213440123 is 3210443122.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2213440123 - 2⁹ = 2213439611 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2213440094 and 2213440103.

It is not an unprimeable number, because it can be changed into a prime (2213440127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15587536 + ... + 15587677.

It is an arithmetic number, because the mean of its divisors is an integer number (561153852).

Almost surely, 2^2213440123 is an apocalyptic number.

2213440123 is a deficient number, since it is larger than the sum of its proper divisors (31175285).

2213440123 is an equidigital number, since it uses as much as digits as its factorization.

2213440123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31175284.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 2213440123 is about 47047.2116389484. The cubic root of 2213440123 is about 1303.2345730873.

Adding to 2213440123 its reverse (3210443122), we get a palindrome (5423883245).

Subtracting 2213440123 from its reverse (3210443122), we obtain a cube (997002999 = 999³).

The spelling of 2213440123 in words is "two billion, two hundred thirteen million, four hundred forty thousand, one hundred twenty-three".