13103120 has 20 divisors (see below), whose sum is σ = 30464940. Its totient is φ = 5241216.

The previous prime is 13103087. The next prime is 13103147. The reversal of 13103120 is 2130131.

It can be written as a sum of positive squares in 2 ways, for example, as 3041536 + 10061584 = 1744^2 + 3172^2 .

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

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, 81815 + ... + 81974.

It is an arithmetic number, because the mean of its divisors is an integer number (1523247).

Almost surely, 2^13103120 is an apocalyptic number.

13103120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13103120 is an abundant number, since it is smaller than the sum of its proper divisors (17361820).

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

13103120 is a wasteful number, since it uses less digits than its factorization.

13103120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163802 (or 163796 counting only the distinct ones).

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

The square root of 13103120 is about 3619.8232001025. The cubic root of 13103120 is about 235.7535491025.

Adding to 13103120 its reverse (2130131), we get a palindrome (15233251).

The spelling of 13103120 in words is "thirteen million, one hundred three thousand, one hundred twenty".