12245543523 has 32 divisors (see below), whose sum is σ = 19080161280. Its totient is φ = 7751259360.

The previous prime is 12245543521. The next prime is 12245543537. The reversal of 12245543523 is 32534554221.

12245543523 is a `hidden beast` number, since 1 + 22 + 45 + 543 + 52 + 3 = 666.

12245543523 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12245543523 - 2¹ = 12245543521 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12245543521) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 93661 + ... + 182382.

It is an arithmetic number, because the mean of its divisors is an integer number (596255040).

Almost surely, 2^12245543523 is an apocalyptic number.

12245543523 is a deficient number, since it is larger than the sum of its proper divisors (6834617757).

12245543523 is a wasteful number, since it uses less digits than its factorization.

12245543523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276136 (or 276130 counting only the distinct ones).

The product of its digits is 144000, while the sum is 36.

The spelling of 12245543523 in words is "twelve billion, two hundred forty-five million, five hundred forty-three thousand, five hundred twenty-three".