1321443000044 has 12 divisors (see below), whose sum is σ = 2312816226000. Its totient is φ = 660638364048.

The previous prime is 1321443000011. The next prime is 1321443000089. The reversal of 1321443000044 is 4400003441231.

It is a junction number, because it is equal to n+sod(n) for n = 1321442999977 and 1321443000022.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20748224 + ... + 20811815.

It is an arithmetic number, because the mean of its divisors is an integer number (192734685500).

Almost surely, 2^{1321443000044} is an apocalyptic number.

It is an amenable number.

1321443000044 is a deficient number, since it is larger than the sum of its proper divisors (991373225956).

1321443000044 is a wasteful number, since it uses less digits than its factorization.

1321443000044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41567992 (or 41567990 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 1321443000044 its reverse (4400003441231), we get a palindrome (5721446441275).

The spelling of 1321443000044 in words is "one trillion, three hundred twenty-one billion, four hundred forty-three million, forty-four", and thus it is an aban number.