331144343310242 has 72 divisors (see below), whose sum is σ = 639965089597680. Its totient is φ = 128032411306800.

The previous prime is 331144343310163. The next prime is 331144343310251. The reversal of 331144343310242 is 242013343441133.

It is a super-2 number, since 2×331144343310242² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 331144343310196 and 331144343310205.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 105033692 + ... + 108140487.

It is an arithmetic number, because the mean of its divisors is an integer number (8888404022190).

Almost surely, 2^{331144343310242} is an apocalyptic number.

331144343310242 is a deficient number, since it is larger than the sum of its proper divisors (308820746287438).

331144343310242 is a wasteful number, since it uses less digits than its factorization.

331144343310242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213174348 (or 213174330 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 38.

Adding to 331144343310242 its reverse (242013343441133), we get a palindrome (573157686751375).

The spelling of 331144343310242 in words is "three hundred thirty-one trillion, one hundred forty-four billion, three hundred forty-three million, three hundred ten thousand, two hundred forty-two".