12042013213 has 4 divisors (see below), whose sum is σ = 12194443840. Its totient is φ = 11889582588.

The previous prime is 12042013177. The next prime is 12042013237. The reversal of 12042013213 is 31231024021.

It is a happy number.

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 not a de Polignac number, because 12042013213 - 2²⁹ = 11505142301 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 (12042083213) 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, 76215195 + ... + 76215352.

It is an arithmetic number, because the mean of its divisors is an integer number (3048610960).

Almost surely, 2^12042013213 is an apocalyptic number.

It is an amenable number.

12042013213 is a deficient number, since it is larger than the sum of its proper divisors (152430627).

12042013213 is an equidigital number, since it uses as much as digits as its factorization.

12042013213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152430626.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 12042013213 its reverse (31231024021), we get a palindrome (43273037234).

The spelling of 12042013213 in words is "twelve billion, forty-two million, thirteen thousand, two hundred thirteen".