1321442431104 has 256 divisors, whose sum is σ = 3837967056000. Its totient is φ = 401204772864.

The previous prime is 1321442431097. The next prime is 1321442431123. The reversal of 1321442431104 is 4011342441231.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30575142 + ... + 30618330.

Almost surely, 2^{1321442431104} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1321442431104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1918983528000).

1321442431104 is an abundant number, since it is smaller than the sum of its proper divisors (2516524624896).

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

1321442431104 is a wasteful number, since it uses less digits than its factorization.

1321442431104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43375 (or 43363 counting only the distinct ones).

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

Adding to 1321442431104 its reverse (4011342441231), we get a palindrome (5332784872335).

The spelling of 1321442431104 in words is "one trillion, three hundred twenty-one billion, four hundred forty-two million, four hundred thirty-one thousand, one hundred four".