12345224523 has 16 divisors (see below), whose sum is σ = 16546532736. Its totient is φ = 8187094080.

The previous prime is 12345224491. The next prime is 12345224527. The reversal of 12345224523 is 32542254321.

It is not a de Polignac number, because 12345224523 - 2⁵ = 12345224491 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12345224527) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 892740 + ... + 906462.

It is an arithmetic number, because the mean of its divisors is an integer number (1034158296).

Almost surely, 2^12345224523 is an apocalyptic number.

12345224523 is a deficient number, since it is larger than the sum of its proper divisors (4201308213).

12345224523 is a wasteful number, since it uses less digits than its factorization.

12345224523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15274.

The product of its digits is 57600, while the sum is 33.

Adding to 12345224523 its reverse (32542254321), we get a palindrome (44887478844).

The spelling of 12345224523 in words is "twelve billion, three hundred forty-five million, two hundred twenty-four thousand, five hundred twenty-three".