13130044420 has 48 divisors (see below), whose sum is σ = 28500595200. Its totient is φ = 5075804160.

The previous prime is 13130044393. The next prime is 13130044439. The reversal of 13130044420 is 2444003131.

It is a junction number, because it is equal to n+sod(n) for n = 13130044391 and 13130044400.

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 15 ways as a sum of consecutive naturals, for example, 463011 + ... + 490549.

It is an arithmetic number, because the mean of its divisors is an integer number (593762400).

Almost surely, 2^13130044420 is an apocalyptic number.

13130044420 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 13130044420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14250297600).

13130044420 is an abundant number, since it is smaller than the sum of its proper divisors (15370550780).

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

13130044420 is a wasteful number, since it uses less digits than its factorization.

13130044420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28348 (or 28346 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 13130044420 its reverse (2444003131), we get a palindrome (15574047551).

The spelling of 13130044420 in words is "thirteen billion, one hundred thirty million, forty-four thousand, four hundred twenty".