1321012411044 has 24 divisors (see below), whose sum is σ = 3082387354368. Its totient is φ = 440333890080.

The previous prime is 1321012411003. The next prime is 1321012411067. The reversal of 1321012411044 is 4401142101231.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1392429 + ... + 2140299.

It is an arithmetic number, because the mean of its divisors is an integer number (128432806432).

Almost surely, 2^{1321012411044} is an apocalyptic number.

It is an amenable number.

1321012411044 is an abundant number, since it is smaller than the sum of its proper divisors (1761374943324).

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

1321012411044 is a wasteful number, since it uses less digits than its factorization.

1321012411044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 895075 (or 895073 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 24.

Adding to 1321012411044 its reverse (4401142101231), we get a palindrome (5722154512275).

The spelling of 1321012411044 in words is "one trillion, three hundred twenty-one billion, twelve million, four hundred eleven thousand, forty-four".