12312012003 has 4 divisors (see below), whose sum is σ = 16416016008. Its totient is φ = 8208008000.

The previous prime is 12312011969. The next prime is 12312012007. The reversal of 12312012003 is 30021021321.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12312012003 - 2⁶ = 12312011939 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12312012007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2052001998 + ... + 2052002003.

It is an arithmetic number, because the mean of its divisors is an integer number (4104004002).

Almost surely, 2^12312012003 is an apocalyptic number.

12312012003 is a deficient number, since it is larger than the sum of its proper divisors (4104004005).

12312012003 is an equidigital number, since it uses as much as digits as its factorization.

12312012003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4104004004.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 12312012003 its reverse (30021021321), we get a palindrome (42333033324).

The spelling of 12312012003 in words is "twelve billion, three hundred twelve million, twelve thousand, three".