12021111313 has 8 divisors (see below), whose sum is σ = 12250087488. Its totient is φ = 11792215344.

The previous prime is 12021111293. The next prime is 12021111341. The reversal of 12021111313 is 31311112021.

It is a happy number.

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 12021111313 - 2²⁵ = 11987556881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12021111353) 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, 345220 + ... + 378442.

It is an arithmetic number, because the mean of its divisors is an integer number (1531260936).

Almost surely, 2^12021111313 is an apocalyptic number.

It is an amenable number.

12021111313 is a deficient number, since it is larger than the sum of its proper divisors (228976175).

12021111313 is an equidigital number, since it uses as much as digits as its factorization.

12021111313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40103.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 12021111313 its reverse (31311112021), we get a palindrome (43332223334).

The spelling of 12021111313 in words is "twelve billion, twenty-one million, one hundred eleven thousand, three hundred thirteen".