12001412331 has 8 divisors (see below), whose sum is σ = 17779870160. Its totient is φ = 8000941536.

The previous prime is 12001412321. The next prime is 12001412333. The reversal of 12001412331 is 13321410021.

It is not a de Polignac number, because 12001412331 - 2⁵ = 12001412299 is a prime.

It is a super-2 number, since 2×12001412331² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12001412333) 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, 222248350 + ... + 222248403.

It is an arithmetic number, because the mean of its divisors is an integer number (2222483770).

Almost surely, 2^12001412331 is an apocalyptic number.

12001412331 is a deficient number, since it is larger than the sum of its proper divisors (5778457829).

12001412331 is an equidigital number, since it uses as much as digits as its factorization.

12001412331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444496762 (or 444496756 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 12001412331 its reverse (13321410021), we get a palindrome (25322822352).

The spelling of 12001412331 in words is "twelve billion, one million, four hundred twelve thousand, three hundred thirty-one".