12003044331 has 4 divisors (see below), whose sum is σ = 16004059112. Its totient is φ = 8002029552.

The previous prime is 12003044329. The next prime is 12003044341. The reversal of 12003044331 is 13344030021.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 12003044331 - 2¹ = 12003044329 is a prime.

It is a super-2 number, since 2×12003044331² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12003044298 and 12003044307.

It is not an unprimeable number, because it can be changed into a prime (12003044321) 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, 2000507386 + ... + 2000507391.

It is an arithmetic number, because the mean of its divisors is an integer number (4001014778).

Almost surely, 2^12003044331 is an apocalyptic number.

12003044331 is a deficient number, since it is larger than the sum of its proper divisors (4001014781).

12003044331 is an equidigital number, since it uses as much as digits as its factorization.

12003044331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4001014780.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 12003044331 its reverse (13344030021), we get a palindrome (25347074352).

The spelling of 12003044331 in words is "twelve billion, three million, forty-four thousand, three hundred thirty-one".