331111242 has 48 divisors (see below), whose sum is σ = 894434112. Its totient is φ = 86002560.

The previous prime is 331111237. The next prime is 331111301. The reversal of 331111242 is 242111133.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 118063 + ... + 120834.

It is an arithmetic number, because the mean of its divisors is an integer number (18634044).

Almost surely, 2^331111242 is an apocalyptic number.

331111242 is an abundant number, since it is smaller than the sum of its proper divisors (563322870).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

331111242 is a wasteful number, since it uses less digits than its factorization.

331111242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238923 (or 238920 counting only the distinct ones).

The product of its digits is 144, while the sum is 18.

The square root of 331111242 is about 18196.4623484896. The cubic root of 331111242 is about 691.8171259332.

Adding to 331111242 its reverse (242111133), we get a palindrome (573222375).

The spelling of 331111242 in words is "three hundred thirty-one million, one hundred eleven thousand, two hundred forty-two".