123344124213 has 4 divisors (see below), whose sum is σ = 164458832288. Its totient is φ = 82229416140.

The previous prime is 123344124191. The next prime is 123344124217. The reversal of 123344124213 is 312421443321.

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 de Polignac number, because none of the positive numbers 2^k-123344124213 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 (123344124217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20557354033 + ... + 20557354038.

It is an arithmetic number, because the mean of its divisors is an integer number (41114708072).

Almost surely, 2^123344124213 is an apocalyptic number.

It is an amenable number.

123344124213 is a deficient number, since it is larger than the sum of its proper divisors (41114708075).

123344124213 is an equidigital number, since it uses as much as digits as its factorization.

123344124213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41114708074.

The product of its digits is 13824, while the sum is 30.

Adding to 123344124213 its reverse (312421443321), we get a palindrome (435765567534).

The spelling of 123344124213 in words is "one hundred twenty-three billion, three hundred forty-four million, one hundred twenty-four thousand, two hundred thirteen".