331223420444443 has 8 divisors (see below), whose sum is σ = 350708148777312. Its totient is φ = 311738802969216.

The previous prime is 331223420444431. The next prime is 331223420444471. The reversal of 331223420444443 is 344444024322133.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 331223420444443 - 2²¹ = 331223418347291 is a prime.

It is a super-2 number, since 2×331223420444443² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 331223420444443.

It is not an unprimeable number, because it can be changed into a prime (331223420444473) 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, 21523480 + ... + 33551557.

It is an arithmetic number, because the mean of its divisors is an integer number (43838518597164).

Almost surely, 2^{331223420444443} is an apocalyptic number.

331223420444443 is a deficient number, since it is larger than the sum of its proper divisors (19484728332869).

331223420444443 is a wasteful number, since it uses less digits than its factorization.

331223420444443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55428821.

The product of its (nonzero) digits is 2654208, while the sum is 43.

Adding to 331223420444443 its reverse (344444024322133), we get a palindrome (675667444766576).

The spelling of 331223420444443 in words is "three hundred thirty-one trillion, two hundred twenty-three billion, four hundred twenty million, four hundred forty-four thousand, four hundred forty-three".