331323220322 has 8 divisors (see below), whose sum is σ = 505132122972. Its totient is φ = 162945846000.

The previous prime is 331323220253. The next prime is 331323220369. The reversal of 331323220322 is 223022323133.

It can be written as a sum of positive squares in 2 ways, for example, as 262983326761 + 68339893561 = 512819^2 + 261419^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 331323220291 and 331323220300.

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, 1357881929 + ... + 1357882172.

Almost surely, 2^331323220322 is an apocalyptic number.

331323220322 is a deficient number, since it is larger than the sum of its proper divisors (173808902650).

331323220322 is a wasteful number, since it uses less digits than its factorization.

331323220322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2715764164.

The product of its (nonzero) digits is 7776, while the sum is 26.

Adding to 331323220322 its reverse (223022323133), we get a palindrome (554345543455).

The spelling of 331323220322 in words is "three hundred thirty-one billion, three hundred twenty-three million, two hundred twenty thousand, three hundred twenty-two".