1331042442440 has 64 divisors (see below), whose sum is σ = 3007058947200. Its totient is φ = 530246817792.

The previous prime is 1331042442371. The next prime is 1331042442451. The reversal of 1331042442440 is 442442401331.

It is a junction number, because it is equal to n+sod(n) for n = 1331042442397 and 1331042442406.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43421759 + ... + 43452401.

It is an arithmetic number, because the mean of its divisors is an integer number (46985296050).

Almost surely, 2^{1331042442440} is an apocalyptic number.

1331042442440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1331042442440 is an abundant number, since it is smaller than the sum of its proper divisors (1676016504760).

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

1331042442440 is a wasteful number, since it uses less digits than its factorization.

1331042442440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35046 (or 35042 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 32.

Adding to 1331042442440 its reverse (442442401331), we get a palindrome (1773484843771).

The spelling of 1331042442440 in words is "one trillion, three hundred thirty-one billion, forty-two million, four hundred forty-two thousand, four hundred forty".