331143242 has 8 divisors (see below), whose sum is σ = 497901600. Its totient is φ = 165176044.

The previous prime is 331143233. The next prime is 331143269. The reversal of 331143242 is 242341133.

331143242 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

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, 196742 + ... + 198417.

It is an arithmetic number, because the mean of its divisors is an integer number (62237700).

Almost surely, 2^331143242 is an apocalyptic number.

331143242 is a deficient number, since it is larger than the sum of its proper divisors (166758358).

331143242 is a wasteful number, since it uses less digits than its factorization.

331143242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395580.

The product of its digits is 1728, while the sum is 23.

The square root of 331143242 is about 18197.3416190388. The cubic root of 331143242 is about 691.8394119327.

Adding to 331143242 its reverse (242341133), we get a palindrome (573484375).

The spelling of 331143242 in words is "three hundred thirty-one million, one hundred forty-three thousand, two hundred forty-two".