331323311242 has 32 divisors (see below), whose sum is σ = 624347564544. Its totient is φ = 128101599600.

The previous prime is 331323311239. The next prime is 331323311251. The reversal of 331323311242 is 242113323133.

It is a self number, because there is not a number n which added to its sum of digits gives 331323311242.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8191468 + ... + 8231815.

It is an arithmetic number, because the mean of its divisors is an integer number (19510861392).

Almost surely, 2^331323311242 is an apocalyptic number.

331323311242 is a deficient number, since it is larger than the sum of its proper divisors (293024253302).

331323311242 is a wasteful number, since it uses less digits than its factorization.

331323311242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16423434.

The product of its digits is 7776, while the sum is 28.

Adding to 331323311242 its reverse (242113323133), we get a palindrome (573436634375).

The spelling of 331323311242 in words is "three hundred thirty-one billion, three hundred twenty-three million, three hundred eleven thousand, two hundred forty-two".