331224404424331 has 16 divisors (see below), whose sum is σ = 361603870408800. Its totient is φ = 300889645056000.

The previous prime is 331224404424313. The next prime is 331224404424341. The reversal of 331224404424331 is 133424404422133.

It is a happy number.

It is not a de Polignac number, because 331224404424331 - 2⁹ = 331224404423819 is a prime.

It is a super-2 number, since 2×331224404424331² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (331224404424341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 501853315 + ... + 502512883.

It is an arithmetic number, because the mean of its divisors is an integer number (22600241900550).

Almost surely, 2^{331224404424331} is an apocalyptic number.

331224404424331 is a deficient number, since it is larger than the sum of its proper divisors (30379465984469).

331224404424331 is a wasteful number, since it uses less digits than its factorization.

331224404424331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 693390.

The product of its (nonzero) digits is 663552, while the sum is 40.

Adding to 331224404424331 its reverse (133424404422133), we get a palindrome (464648808846464).

The spelling of 331224404424331 in words is "three hundred thirty-one trillion, two hundred twenty-four billion, four hundred four million, four hundred twenty-four thousand, three hundred thirty-one".