1103221311232 has 72 divisors (see below), whose sum is σ = 2257112966976. Its totient is φ = 537923629056.

The previous prime is 1103221311193. The next prime is 1103221311299. The reversal of 1103221311232 is 2321131223011.

It is a congruent 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, 3167358 + ... + 3498370.

It is an arithmetic number, because the mean of its divisors is an integer number (31348791208).

Almost surely, 2^{1103221311232} 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 1103221311232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1128556483488).

1103221311232 is an abundant number, since it is smaller than the sum of its proper divisors (1153891655744).

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

1103221311232 is an equidigital number, since it uses as much as digits as its factorization.

1103221311232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331353 (or 331339 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 1103221311232 its reverse (2321131223011), we get a palindrome (3424352534243).

The spelling of 1103221311232 in words is "one trillion, one hundred three billion, two hundred twenty-one million, three hundred eleven thousand, two hundred thirty-two".