12453433305523 has 32 divisors (see below), whose sum is σ = 14306391834624. Its totient is φ = 10619118461952.

The previous prime is 12453433305427. The next prime is 12453433305571. The reversal of 12453433305523 is 32550333435421.

It is a de Polignac number, because none of the positive numbers 2^k-12453433305523 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12453433305523.

It is not an unprimeable number, because it can be changed into a prime (12453433305623) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3655247286 + ... + 3655250692.

It is an arithmetic number, because the mean of its divisors is an integer number (447074744832).

Almost surely, 2^{12453433305523} is an apocalyptic number.

12453433305523 is a deficient number, since it is larger than the sum of its proper divisors (1852958529101).

12453433305523 is a wasteful number, since it uses less digits than its factorization.

12453433305523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6811.

The product of its (nonzero) digits is 1944000, while the sum is 43.

The spelling of 12453433305523 in words is "twelve trillion, four hundred fifty-three billion, four hundred thirty-three million, three hundred five thousand, five hundred twenty-three".