12123244334 has 4 divisors (see below), whose sum is σ = 18184866504. Its totient is φ = 6061622166.

The previous prime is 12123244313. The next prime is 12123244337. The reversal of 12123244334 is 43344232121.

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

It is a junction number, because it is equal to n+sod(n) for n = 12123244297 and 12123244306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12123244337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3030811082 + ... + 3030811085.

It is an arithmetic number, because the mean of its divisors is an integer number (4546216626).

Almost surely, 2^12123244334 is an apocalyptic number.

12123244334 is a deficient number, since it is larger than the sum of its proper divisors (6061622170).

12123244334 is an equidigital number, since it uses as much as digits as its factorization.

12123244334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6061622169.

The product of its digits is 13824, while the sum is 29.

Adding to 12123244334 its reverse (43344232121), we get a palindrome (55467476455).

The spelling of 12123244334 in words is "twelve billion, one hundred twenty-three million, two hundred forty-four thousand, three hundred thirty-four".