331505424342 has 12 divisors (see below), whose sum is σ = 718261752780. Its totient is φ = 110501808108.

The previous prime is 331505424329. The next prime is 331505424353. The reversal of 331505424342 is 243424505133.

331505424342 is a `hidden beast` number, since 3 + 31 + 5 + 0 + 542 + 43 + 42 = 666.

It is a super-2 number, since 2×331505424342² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 331505424297 and 331505424306.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9208483992 + ... + 9208484027.

It is an arithmetic number, because the mean of its divisors is an integer number (59855146065).

Almost surely, 2^331505424342 is an apocalyptic number.

331505424342 is an abundant number, since it is smaller than the sum of its proper divisors (386756328438).

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

331505424342 is a wasteful number, since it uses less digits than its factorization.

331505424342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18416968027 (or 18416968024 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 36.

Adding to 331505424342 its reverse (243424505133), we get a palindrome (574929929475).

The spelling of 331505424342 in words is "three hundred thirty-one billion, five hundred five million, four hundred twenty-four thousand, three hundred forty-two".