12003044431 has 16 divisors (see below), whose sum is σ = 14418699264. Its totient is φ = 9769155264.

The previous prime is 12003044423. The next prime is 12003044437. The reversal of 12003044431 is 13444030021.

It is a cyclic number.

It is not a de Polignac number, because 12003044431 - 2³ = 12003044423 is a prime.

It is a super-2 number, since 2×12003044431² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12003044437) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 250035 + ... + 294148.

It is an arithmetic number, because the mean of its divisors is an integer number (901168704).

Almost surely, 2^12003044431 is an apocalyptic number.

12003044431 is a deficient number, since it is larger than the sum of its proper divisors (2415654833).

12003044431 is a wasteful number, since it uses less digits than its factorization.

12003044431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 544350.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 12003044431 its reverse (13444030021), we get a palindrome (25447074452).

It can be divided in two parts, 120030 and 44431, that added together give a palindrome (164461).

The spelling of 12003044431 in words is "twelve billion, three million, forty-four thousand, four hundred thirty-one".