1001321113232 has 80 divisors (see below), whose sum is σ = 2185303179264. Its totient is φ = 440342352000.

The previous prime is 1001321113171. The next prime is 1001321113249. The reversal of 1001321113232 is 2323111231001.

It is a happy number.

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, 21424193 + ... + 21470879.

Almost surely, 2^{1001321113232} 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 1001321113232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1092651589632).

1001321113232 is an abundant number, since it is smaller than the sum of its proper divisors (1183982066032).

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

1001321113232 is a wasteful number, since it uses less digits than its factorization.

1001321113232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50668 (or 50662 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 1001321113232 its reverse (2323111231001), we get a palindrome (3324432344233).

The spelling of 1001321113232 in words is "one trillion, one billion, three hundred twenty-one million, one hundred thirteen thousand, two hundred thirty-two".