1103323212120 has 256 divisors, whose sum is σ = 3545915719680. Its totient is φ = 273991308800.

The previous prime is 1103323212109. The next prime is 1103323212139. The reversal of 1103323212120 is 212123233011.

It is a super-2 number, since 2×1103323212120² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 24754255 + ... + 24798785.

It is an arithmetic number, because the mean of its divisors is an integer number (13851233280).

Almost surely, 2^{1103323212120} is an apocalyptic number.

1103323212120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1103323212120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1772957859840).

1103323212120 is an abundant number, since it is smaller than the sum of its proper divisors (2442592507560).

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

1103323212120 is a wasteful number, since it uses less digits than its factorization.

1103323212120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44806 (or 44802 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 1103323212120 its reverse (212123233011), we get a palindrome (1315446445131).

The spelling of 1103323212120 in words is "one trillion, one hundred three billion, three hundred twenty-three million, two hundred twelve thousand, one hundred twenty".