331143322 has 4 divisors (see below), whose sum is σ = 496714986. Its totient is φ = 165571660.

The previous prime is 331143269. The next prime is 331143331. The reversal of 331143322 is 223341133.

331143322 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 330839721 + 303601 = 18189^2 + 551^2 .

It is a junction number, because it is equal to n+sod(n) for n = 331143293 and 331143302.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82785829 + ... + 82785832.

Almost surely, 2^331143322 is an apocalyptic number.

331143322 is a deficient number, since it is larger than the sum of its proper divisors (165571664).

331143322 is a wasteful number, since it uses less digits than its factorization.

331143322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165571663.

The product of its digits is 1296, while the sum is 22.

The square root of 331143322 is about 18197.3438171619. The cubic root of 331143322 is about 691.8394676459.

Adding to 331143322 its reverse (223341133), we get a palindrome (554484455).

The spelling of 331143322 in words is "three hundred thirty-one million, one hundred forty-three thousand, three hundred twenty-two".