12043201331 has 6 divisors (see below), whose sum is σ = 14009438340. Its totient is φ = 10322743956.

The previous prime is 12043201279. The next prime is 12043201337. The reversal of 12043201331 is 13310234021.

It is not a de Polignac number, because 12043201331 - 2²⁶ = 11976092467 is a prime.

It is a super-2 number, since 2×12043201331² (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 (12043201337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 122889761 + ... + 122889858.

It is an arithmetic number, because the mean of its divisors is an integer number (2334906390).

Almost surely, 2^12043201331 is an apocalyptic number.

12043201331 is a deficient number, since it is larger than the sum of its proper divisors (1966237009).

12043201331 is an equidigital number, since it uses as much as digits as its factorization.

12043201331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245779633 (or 245779626 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 12043201331 its reverse (13310234021), we get a palindrome (25353435352).

The spelling of 12043201331 in words is "twelve billion, forty-three million, two hundred one thousand, three hundred thirty-one".