12005424523 has 2 divisors, whose sum is σ = 12005424524. Its totient is φ = 12005424522.

The previous prime is 12005424469. The next prime is 12005424559. The reversal of 12005424523 is 32542450021.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12005424523 - 2¹³ = 12005416331 is a prime.

It is a super-3 number, since 3×12005424523³ (a number of 31 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12005424491 and 12005424500.

It is not a weakly prime, because it can be changed into another prime (12005424323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6002712261 + 6002712262.

It is an arithmetic number, because the mean of its divisors is an integer number (6002712262).

Almost surely, 2^12005424523 is an apocalyptic number.

12005424523 is a deficient number, since it is larger than the sum of its proper divisors (1).

12005424523 is an equidigital number, since it uses as much as digits as its factorization.

12005424523 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9600, while the sum is 28.

Adding to 12005424523 its reverse (32542450021), we get a palindrome (44547874544).

The spelling of 12005424523 in words is "twelve billion, five million, four hundred twenty-four thousand, five hundred twenty-three".