12031420450444 has 48 divisors (see below), whose sum is σ = 22755652768800. Its totient is φ = 5545189938176.

The previous prime is 12031420450433. The next prime is 12031420450459. The reversal of 12031420450444 is 44405402413021.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 4494859 + ... + 6653314.

It is an arithmetic number, because the mean of its divisors is an integer number (474076099350).

Almost surely, 2^{12031420450444} is an apocalyptic number.

It is an amenable number.

12031420450444 is a deficient number, since it is larger than the sum of its proper divisors (10724232318356).

12031420450444 is a wasteful number, since it uses less digits than its factorization.

12031420450444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11148522 (or 11148520 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 34.

Adding to 12031420450444 its reverse (44405402413021), we get a palindrome (56436822863465).

The spelling of 12031420450444 in words is "twelve trillion, thirty-one billion, four hundred twenty million, four hundred fifty thousand, four hundred forty-four".