331031042 has 8 divisors (see below), whose sum is σ = 518135616. Its totient is φ = 158319172.

The previous prime is 331031017. The next prime is 331031069. The reversal of 331031042 is 240130133.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 331031042.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3598118 + ... + 3598209.

It is an arithmetic number, because the mean of its divisors is an integer number (64766952).

Almost surely, 2^331031042 is an apocalyptic number.

331031042 is a deficient number, since it is larger than the sum of its proper divisors (187104574).

331031042 is a wasteful number, since it uses less digits than its factorization.

331031042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7196352.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 331031042 is about 18194.2584899742. The cubic root of 331031042 is about 691.7612653374.

Adding to 331031042 its reverse (240130133), we get a palindrome (571161175).

Subtracting from 331031042 its reverse (240130133), we obtain a palindrome (90900909).

The spelling of 331031042 in words is "three hundred thirty-one million, thirty-one thousand, forty-two".