1331044431444 has 144 divisors (see below), whose sum is σ = 4358976119680. Its totient is φ = 332568633600.

The previous prime is 1331044431443. The next prime is 1331044431469. The reversal of 1331044431444 is 4441344401331.

1331044431444 is a `hidden beast` number, since 1 + 331 + 0 + 4 + 4 + 4 + 314 + 4 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 1331044431399 and 1331044431408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1331044431443) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10629907 + ... + 10754394.

Almost surely, 2^{1331044431444} is an apocalyptic number.

1331044431444 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1331044431444 is an abundant number, since it is smaller than the sum of its proper divisors (3027931688236).

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

1331044431444 is a wasteful number, since it uses less digits than its factorization.

1331044431444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21384350 (or 21384345 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 36.

Adding to 1331044431444 its reverse (4441344401331), we get a palindrome (5772388832775).

The spelling of 1331044431444 in words is "one trillion, three hundred thirty-one billion, forty-four million, four hundred thirty-one thousand, four hundred forty-four".