13100520 has 32 divisors (see below), whose sum is σ = 39301920. Its totient is φ = 3493440.

The previous prime is 13100513. The next prime is 13100531. The reversal of 13100520 is 2500131.

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 = 13100496 and 13100505.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54466 + ... + 54705.

It is an arithmetic number, because the mean of its divisors is an integer number (1228185).

Almost surely, 2^13100520 is an apocalyptic number.

13100520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13100520 is an abundant number, since it is smaller than the sum of its proper divisors (26201400).

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

13100520 is a wasteful number, since it uses less digits than its factorization.

13100520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109185 (or 109181 counting only the distinct ones).

The product of its (nonzero) digits is 30, while the sum is 12.

The square root of 13100520 is about 3619.4640487232. The cubic root of 13100520 is about 235.7379548579.

Adding to 13100520 its reverse (2500131), we get a palindrome (15600651).

The spelling of 13100520 in words is "thirteen million, one hundred thousand, five hundred twenty".