443023131223421 has 8 divisors (see below), whose sum is σ = 536095217615040. Its totient is φ = 357396811743168.

The previous prime is 443023131223417. The next prime is 443023131223451. The reversal of 443023131223421 is 124322131320344.

It is a happy number.

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 443023131223421 - 2² = 443023131223417 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 (443023131223451) 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, 1861441727711 + ... + 1861441727948.

It is an arithmetic number, because the mean of its divisors is an integer number (67011902201880).

Almost surely, 2^{443023131223421} is an apocalyptic number.

It is an amenable number.

443023131223421 is a deficient number, since it is larger than the sum of its proper divisors (93072086391619).

443023131223421 is a wasteful number, since it uses less digits than its factorization.

443023131223421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3722883455683.

The product of its (nonzero) digits is 82944, while the sum is 35.

Adding to 443023131223421 its reverse (124322131320344), we get a palindrome (567345262543765).

The spelling of 443023131223421 in words is "four hundred forty-three trillion, twenty-three billion, one hundred thirty-one million, two hundred twenty-three thousand, four hundred twenty-one".