12003031212013 has 4 divisors (see below), whose sum is σ = 12003076929888. Its totient is φ = 12002985494140.

The previous prime is 12003031211999. The next prime is 12003031212043. The reversal of 12003031212013 is 31021213030021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12003031212013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12003031212043) 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, 22462831 + ... + 22990972.

It is an arithmetic number, because the mean of its divisors is an integer number (3000769232472).

Almost surely, 2^{12003031212013} is an apocalyptic number.

It is an amenable number.

12003031212013 is a deficient number, since it is larger than the sum of its proper divisors (45717875).

12003031212013 is an equidigital number, since it uses as much as digits as its factorization.

12003031212013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45717874.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 12003031212013 its reverse (31021213030021), we get a palindrome (43024244242034).

The spelling of 12003031212013 in words is "twelve trillion, three billion, thirty-one million, two hundred twelve thousand, thirteen".