13113420 has 48 divisors (see below), whose sum is σ = 38653440. Its totient is φ = 3312576.

The previous prime is 13113413. The next prime is 13113431. The reversal of 13113420 is 2431131.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 13113420.

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, 4612 + ... + 6891.

It is an arithmetic number, because the mean of its divisors is an integer number (805280).

Almost surely, 2^13113420 is an apocalyptic number.

13113420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13113420 is an abundant number, since it is smaller than the sum of its proper divisors (25540020).

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

13113420 is a wasteful number, since it uses less digits than its factorization.

13113420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11534 (or 11532 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 13113420 is about 3621.2456420409. The cubic root of 13113420 is about 235.8153060370.

Adding to 13113420 its reverse (2431131), we get a palindrome (15544551).

The spelling of 13113420 in words is "thirteen million, one hundred thirteen thousand, four hundred twenty".