44131223421 has 24 divisors (see below), whose sum is σ = 64886211936. Its totient is φ = 28898249760.

The previous prime is 44131223413. The next prime is 44131223471. The reversal of 44131223421 is 12432213144.

44131223421 is a `hidden beast` number, since 4 + 4 + 1 + 312 + 2 + 342 + 1 = 666.

It is not a de Polignac number, because 44131223421 - 2³ = 44131223413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44131223471) 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 23 ways as a sum of consecutive naturals, for example, 41515 + ... + 299976.

It is an arithmetic number, because the mean of its divisors is an integer number (2703592164).

Almost surely, 2^44131223421 is an apocalyptic number.

It is an amenable number.

44131223421 is a deficient number, since it is larger than the sum of its proper divisors (20754988515).

44131223421 is a wasteful number, since it uses less digits than its factorization.

44131223421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341753 (or 341750 counting only the distinct ones).

The product of its digits is 4608, while the sum is 27.

Adding to 44131223421 its reverse (12432213144), we get a palindrome (56563436565).

The spelling of 44131223421 in words is "forty-four billion, one hundred thirty-one million, two hundred twenty-three thousand, four hundred twenty-one".