12031144421 has 8 divisors (see below), whose sum is σ = 12454041600. Its totient is φ = 11608782640.

The previous prime is 12031144399. The next prime is 12031144441. The reversal of 12031144421 is 12444113021.

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 12031144421 - 2¹⁴ = 12031128037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12031144441) 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, 87845 + ... + 178266.

It is an arithmetic number, because the mean of its divisors is an integer number (1556755200).

Almost surely, 2^12031144421 is an apocalyptic number.

It is an amenable number.

12031144421 is a deficient number, since it is larger than the sum of its proper divisors (422897179).

12031144421 is a wasteful number, since it uses less digits than its factorization.

12031144421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267699.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 12031144421 its reverse (12444113021), we get a palindrome (24475257442).

The spelling of 12031144421 in words is "twelve billion, thirty-one million, one hundred forty-four thousand, four hundred twenty-one".