331223420444432 has 20 divisors (see below), whose sum is σ = 659089846763916. Its totient is φ = 161135718053760.

The previous prime is 331223420444431. The next prime is 331223420444471. The reversal of 331223420444432 is 234444024322133.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 267463259324416 + 63760161120016 = 16354304^2 + 7984996^2 .

It is a super-3 number, since 3×331223420444432³ (a number of 45 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 331223420444432.

It is not an unprimeable number, because it can be changed into a prime (331223420444431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 279749509919 + ... + 279749511102.

Almost surely, 2^{331223420444432} is an apocalyptic number.

It is an amenable number.

331223420444432 is a deficient number, since it is larger than the sum of its proper divisors (327866426319484).

331223420444432 is a wasteful number, since it uses less digits than its factorization.

331223420444432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 559499021066 (or 559499021060 counting only the distinct ones).

The product of its (nonzero) digits is 1327104, while the sum is 41.

Adding to 331223420444432 its reverse (234444024322133), we get a palindrome (565667444766565).

The spelling of 331223420444432 in words is "three hundred thirty-one trillion, two hundred twenty-three billion, four hundred twenty million, four hundred forty-four thousand, four hundred thirty-two".