1331404112442 has 8 divisors (see below), whose sum is σ = 2662808224896. Its totient is φ = 443801370812.

The previous prime is 1331404112419. The next prime is 1331404112443. The reversal of 1331404112442 is 2442114041331.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

1331404112442 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (1331404112443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110950342698 + ... + 110950342709.

It is an arithmetic number, because the mean of its divisors is an integer number (332851028112).

Almost surely, 2^{1331404112442} is an apocalyptic number.

1331404112442 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1331404112442 is a wasteful number, since it uses less digits than its factorization.

1331404112442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221900685412.

The product of its (nonzero) digits is 9216, while the sum is 30.

Adding to 1331404112442 its reverse (2442114041331), we get a palindrome (3773518153773).

The spelling of 1331404112442 in words is "one trillion, three hundred thirty-one billion, four hundred four million, one hundred twelve thousand, four hundred forty-two".