1105603003120 has 320 divisors, whose sum is σ = 3260527312896. Its totient is φ = 338637911040.

The previous prime is 1105603003061. The next prime is 1105603003133. The reversal of 1105603003120 is 213003065011.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 1105603003091 and 1105603003100.

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, 182831937 + ... + 182837983.

Almost surely, 2^{1105603003120} is an apocalyptic number.

1105603003120 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 1105603003120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1630263656448).

1105603003120 is an abundant number, since it is smaller than the sum of its proper divisors (2154924309776).

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

1105603003120 is a wasteful number, since it uses less digits than its factorization.

1105603003120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6588 (or 6582 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 22.

Adding to 1105603003120 its reverse (213003065011), we get a palindrome (1318606068131).

The spelling of 1105603003120 in words is "one trillion, one hundred five billion, six hundred three million, three thousand, one hundred twenty".