331223420444444 has 24 divisors (see below), whose sum is σ = 632336690177136. Its totient is φ = 150555845600000.

The previous prime is 331223420444431. The next prime is 331223420444471. The reversal of 331223420444444 is 444444024322133.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a junction number, because it is equal to n+sod(n) for n = 331223420444395 and 331223420444404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21300644 + ... + 33409044.

It is an arithmetic number, because the mean of its divisors is an integer number (26347362090714).

Almost surely, 2^{331223420444444} is an apocalyptic number.

It is an amenable number.

331223420444444 is a deficient number, since it is larger than the sum of its proper divisors (301113269732692).

331223420444444 is a wasteful number, since it uses less digits than its factorization.

331223420444444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12730117 (or 12730115 counting only the distinct ones).

The product of its (nonzero) digits is 3538944, while the sum is 44.

Adding to 331223420444444 its reverse (444444024322133), we get a palindrome (775667444766577).

The spelling of 331223420444444 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-four".