12003011321 has 8 divisors (see below), whose sum is σ = 13718752704. Its totient is φ = 10287526320.

The previous prime is 12003011309. The next prime is 12003011323. The reversal of 12003011321 is 12311030021.

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 12003011321 - 2¹⁸ = 12002749177 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12003011296 and 12003011305.

It is not an unprimeable number, because it can be changed into a prime (12003011323) 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, 49706 + ... + 162716.

It is an arithmetic number, because the mean of its divisors is an integer number (1714844088).

Almost surely, 2^12003011321 is an apocalyptic number.

It is an amenable number.

12003011321 is a deficient number, since it is larger than the sum of its proper divisors (1715741383).

12003011321 is a wasteful number, since it uses less digits than its factorization.

12003011321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128191.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 12003011321 its reverse (12311030021), we get a palindrome (24314041342).

The spelling of 12003011321 in words is "twelve billion, three million, eleven thousand, three hundred twenty-one".