1103321023312 has 80 divisors (see below), whose sum is σ = 2285218022400. Its totient is φ = 514894786560.

The previous prime is 1103321023309. The next prime is 1103321023361. The reversal of 1103321023312 is 2133201233011.

It is a congruent 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, 13321453 + ... + 13404019.

It is an arithmetic number, because the mean of its divisors is an integer number (28565225280).

Almost surely, 2^{1103321023312} 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 1103321023312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1142609011200).

1103321023312 is an abundant number, since it is smaller than the sum of its proper divisors (1181896999088).

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

1103321023312 is a wasteful number, since it uses less digits than its factorization.

1103321023312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83564 (or 83558 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 1103321023312 its reverse (2133201233011), we get a palindrome (3236522256323).

The spelling of 1103321023312 in words is "one trillion, one hundred three billion, three hundred twenty-one million, twenty-three thousand, three hundred twelve".