13113620 has 48 divisors (see below), whose sum is σ = 30632448. Its totient is φ = 4682880.

The previous prime is 13113619. The next prime is 13113637. The reversal of 13113620 is 2631131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7247 + ... + 8873.

It is an arithmetic number, because the mean of its divisors is an integer number (638176).

Almost surely, 2^13113620 is an apocalyptic number.

13113620 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 13113620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15316224).

13113620 is an abundant number, since it is smaller than the sum of its proper divisors (17518828).

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

13113620 is a wasteful number, since it uses less digits than its factorization.

13113620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1680 (or 1678 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 13113620 is about 3621.2732567427. The cubic root of 13113620 is about 235.8165048806.

Adding to 13113620 its reverse (2631131), we get a palindrome (15744751).

The spelling of 13113620 in words is "thirteen million, one hundred thirteen thousand, six hundred twenty".