1331110242 has 96 divisors (see below), whose sum is σ = 3633162624. Its totient is φ = 342144000.

The previous prime is 1331110177. The next prime is 1331110273. The reversal of 1331110242 is 2420111331.

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 47 ways as a sum of consecutive naturals, for example, 129492 + ... + 139392.

It is an arithmetic number, because the mean of its divisors is an integer number (37845444).

Almost surely, 2^1331110242 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1331110242, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1816581312).

1331110242 is an abundant number, since it is smaller than the sum of its proper divisors (2302052382).

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

1331110242 is a wasteful number, since it uses less digits than its factorization.

1331110242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10024 (or 10021 counting only the distinct ones).

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

The square root of 1331110242 is about 36484.3835359733. The cubic root of 1331110242 is about 1100.0303688585.

Adding to 1331110242 its reverse (2420111331), we get a palindrome (3751221573).

The spelling of 1331110242 in words is "one billion, three hundred thirty-one million, one hundred ten thousand, two hundred forty-two".