331331424220242 has 24 divisors (see below), whose sum is σ = 727718790185244. Its totient is φ = 108930879195264.

The previous prime is 331331424220231. The next prime is 331331424220333. The reversal of 331331424220242 is 242022424133133.

331331424220242 is a `hidden beast` number, since 3 + 3 + 1 + 3 + 3 + 1 + 424 + 220 + 2 + 4 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 292726811966121 + 38604612254121 = 17109261^2 + 6213261^2 .

It is a junction number, because it is equal to n+sod(n) for n = 331331424220197 and 331331424220206.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 126077405163 + ... + 126077407790.

Almost surely, 2^{331331424220242} is an apocalyptic number.

331331424220242 is an abundant number, since it is smaller than the sum of its proper divisors (396387365965002).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

331331424220242 is a wasteful number, since it uses less digits than its factorization.

331331424220242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252154813034 (or 252154813031 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 36.

Adding to 331331424220242 its reverse (242022424133133), we get a palindrome (573353848353375).

The spelling of 331331424220242 in words is "three hundred thirty-one trillion, three hundred thirty-one billion, four hundred twenty-four million, two hundred twenty thousand, two hundred forty-two".