12423254545 has 8 divisors (see below), whose sum is σ = 16054667496. Its totient is φ = 9174095616.

The previous prime is 12423254531. The next prime is 12423254567. The reversal of 12423254545 is 54545232421.

12423254545 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 164557584 + 12258696961 = 12828^2 + 110719^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12423254545 - 2²⁷ = 12289036817 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95563432 + ... + 95563561.

It is an arithmetic number, because the mean of its divisors is an integer number (2006833437).

Almost surely, 2^12423254545 is an apocalyptic number.

It is an amenable number.

12423254545 is a deficient number, since it is larger than the sum of its proper divisors (3631412951).

12423254545 is a wasteful number, since it uses less digits than its factorization.

12423254545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191127011.

The product of its digits is 192000, while the sum is 37.

Adding to 12423254545 its reverse (54545232421), we get a palindrome (66968486966).

The spelling of 12423254545 in words is "twelve billion, four hundred twenty-three million, two hundred fifty-four thousand, five hundred forty-five".