1103003120 has 20 divisors (see below), whose sum is σ = 2564482440. Its totient is φ = 441201216.

The previous prime is 1103003119. The next prime is 1103003173. The reversal of 1103003120 is 213003011.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6893690 + ... + 6893849.

It is an arithmetic number, because the mean of its divisors is an integer number (128224122).

Almost surely, 2^1103003120 is an apocalyptic number.

1103003120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1103003120 is an abundant number, since it is smaller than the sum of its proper divisors (1461479320).

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

1103003120 is a wasteful number, since it uses less digits than its factorization.

1103003120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13787552 (or 13787546 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 1103003120 is about 33211.4907825590. The cubic root of 1103003120 is about 1033.2186742937.

Adding to 1103003120 its reverse (213003011), we get a palindrome (1316006131).

The spelling of 1103003120 in words is "one billion, one hundred three million, three thousand, one hundred twenty".