12523121345023 has 8 divisors (see below), whose sum is σ = 12617169374880. Its totient is φ = 12429300211680.

The previous prime is 12523121344973. The next prime is 12523121345057. The reversal of 12523121345023 is 32054312132521.

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 12523121345023 - 2³³ = 12514531410431 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12523121345023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12523121345123) 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 7 ways as a sum of consecutive naturals, for example, 56613328 + ... + 56834101.

It is an arithmetic number, because the mean of its divisors is an integer number (1577146171860).

Almost surely, 2^{12523121345023} is an apocalyptic number.

12523121345023 is a deficient number, since it is larger than the sum of its proper divisors (94048029857).

12523121345023 is a wasteful number, since it uses less digits than its factorization.

12523121345023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113448257.

The product of its (nonzero) digits is 43200, while the sum is 34.

Adding to 12523121345023 its reverse (32054312132521), we get a palindrome (44577433477544).

The spelling of 12523121345023 in words is "twelve trillion, five hundred twenty-three billion, one hundred twenty-one million, three hundred forty-five thousand, twenty-three".