12000523503 has 8 divisors (see below), whose sum is σ = 16032135600. Its totient is φ = 7984630208.

The previous prime is 12000523453. The next prime is 12000523517. The reversal of 12000523503 is 30532500021.

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 12000523503 - 2⁸ = 12000523247 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12000523503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12000523303) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3927918 + ... + 3930971.

It is an arithmetic number, because the mean of its divisors is an integer number (2004016950).

Almost surely, 2^12000523503 is an apocalyptic number.

12000523503 is a deficient number, since it is larger than the sum of its proper divisors (4031612097).

12000523503 is an equidigital number, since it uses as much as digits as its factorization.

12000523503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7859401.

The product of its (nonzero) digits is 900, while the sum is 21.

The spelling of 12000523503 in words is "twelve billion, five hundred twenty-three thousand, five hundred three".