13113104420 has 96 divisors (see below), whose sum is σ = 29898741600. Its totient is φ = 4802310144.

The previous prime is 13113104363. The next prime is 13113104437. The reversal of 13113104420 is 2440131131.

It can be written as a sum of positive squares in 16 ways, for example, as 7107164416 + 6005940004 = 84304^2 + 77498^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 13113104392 and 13113104401.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32061176 + ... + 32061584.

It is an arithmetic number, because the mean of its divisors is an integer number (311445225).

Almost surely, 2^13113104420 is an apocalyptic number.

13113104420 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 13113104420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14949370800).

13113104420 is an abundant number, since it is smaller than the sum of its proper divisors (16785637180).

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

13113104420 is a wasteful number, since it uses less digits than its factorization.

13113104420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1137 (or 1135 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 13113104420 its reverse (2440131131), we get a palindrome (15553235551).

The spelling of 13113104420 in words is "thirteen billion, one hundred thirteen million, one hundred four thousand, four hundred twenty".