331131111443242 has 64 divisors (see below), whose sum is σ = 575847752135040. Its totient is φ = 141356356243200.

The previous prime is 331131111443233. The next prime is 331131111443309. The reversal of 331131111443242 is 242344111131133.

It is a junction number, because it is equal to n+sod(n) for n = 331131111443198 and 331131111443207.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 81608133 + ... + 85569559.

It is an arithmetic number, because the mean of its divisors is an integer number (8997621127110).

Almost surely, 2^{331131111443242} is an apocalyptic number.

331131111443242 is a deficient number, since it is larger than the sum of its proper divisors (244716640691798).

331131111443242 is a wasteful number, since it uses less digits than its factorization.

331131111443242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3965047.

The product of its digits is 20736, while the sum is 34.

Adding to 331131111443242 its reverse (242344111131133), we get a palindrome (573475222574375).

The spelling of 331131111443242 in words is "three hundred thirty-one trillion, one hundred thirty-one billion, one hundred eleven million, four hundred forty-three thousand, two hundred forty-two".