13011120 has 120 divisors (see below), whose sum is σ = 46309536. Its totient is φ = 3262464.

The previous prime is 13011113. The next prime is 13011121. The reversal of 13011120 is 2111031.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (13011121) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11709 + ... + 12771.

Almost surely, 2^13011120 is an apocalyptic number.

13011120 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 13011120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23154768).

13011120 is an abundant number, since it is smaller than the sum of its proper divisors (33298416).

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

13011120 is a wasteful number, since it uses less digits than its factorization.

13011120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1099 (or 1090 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 9.

The square root of 13011120 is about 3607.0930123855. The cubic root of 13011120 is about 235.2004928492.

Adding to 13011120 its reverse (2111031), we get a palindrome (15122151).

It can be divided in two parts, 13011 and 120, that added together give a palindrome (13131).

The spelling of 13011120 in words is "thirteen million, eleven thousand, one hundred twenty".