12003534523 has 2 divisors, whose sum is σ = 12003534524. Its totient is φ = 12003534522.

The previous prime is 12003534511. The next prime is 12003534547. The reversal of 12003534523 is 32543530021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12003534523 - 2¹³ = 12003526331 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12003534491 and 12003534500.

It is not a weakly prime, because it can be changed into another prime (12003534553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6001767261 + 6001767262.

It is an arithmetic number, because the mean of its divisors is an integer number (6001767262).

Almost surely, 2^12003534523 is an apocalyptic number.

12003534523 is a deficient number, since it is larger than the sum of its proper divisors (1).

12003534523 is an equidigital number, since it uses as much as digits as its factorization.

12003534523 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10800, while the sum is 28.

The spelling of 12003534523 in words is "twelve billion, three million, five hundred thirty-four thousand, five hundred twenty-three".