331131342 has 32 divisors (see below), whose sum is σ = 670874400. Its totient is φ = 108951680.

The previous prime is 331131337. The next prime is 331131371. The reversal of 331131342 is 243131133.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 153592 + ... + 155732.

It is an arithmetic number, because the mean of its divisors is an integer number (20964825).

Almost surely, 2^331131342 is an apocalyptic number.

331131342 is an abundant number, since it is smaller than the sum of its proper divisors (339743058).

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

331131342 is a wasteful number, since it uses less digits than its factorization.

331131342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2468.

The product of its digits is 648, while the sum is 21.

The square root of 331131342 is about 18197.0146452653. The cubic root of 331131342 is about 691.8311244943.

Adding to 331131342 its reverse (243131133), we get a palindrome (574262475).

The spelling of 331131342 in words is "three hundred thirty-one million, one hundred thirty-one thousand, three hundred forty-two".