1103013120 has 144 divisors (see below), whose sum is σ = 3843145152. Its totient is φ = 267386880.

The previous prime is 1103013101. The next prime is 1103013127. The reversal of 1103013120 is 213103011.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 1103013096 and 1103013105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1103013127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29184 + ... + 55296.

It is an arithmetic number, because the mean of its divisors is an integer number (26688508).

Almost surely, 2^1103013120 is an apocalyptic number.

1103013120 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 1103013120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1921572576).

1103013120 is an abundant number, since it is smaller than the sum of its proper divisors (2740132032).

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

1103013120 is a wasteful number, since it uses less digits than its factorization.

1103013120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26148 (or 26134 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 1103013120 is about 33211.6413325207. The cubic root of 1103013120 is about 1033.2217967253.

Adding to 1103013120 its reverse (213103011), we get a palindrome (1316116131).

The spelling of 1103013120 in words is "one billion, one hundred three million, thirteen thousand, one hundred twenty".