13120430020220 has 144 divisors (see below), whose sum is σ = 29497473371520. Its totient is φ = 4899138211968.

The previous prime is 13120430020171. The next prime is 13120430020249. The reversal of 13120430020220 is 2202003402131.

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 = 13120430020192 and 13120430020201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 572758007 + ... + 572780913.

It is an arithmetic number, because the mean of its divisors is an integer number (204843565080).

Almost surely, 2^{13120430020220} is an apocalyptic number.

13120430020220 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 13120430020220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14748736685760).

13120430020220 is an abundant number, since it is smaller than the sum of its proper divisors (16377043351300).

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

13120430020220 is a wasteful number, since it uses less digits than its factorization.

13120430020220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24264 (or 24239 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 13120430020220 its reverse (2202003402131), we get a palindrome (15322433422351).

The spelling of 13120430020220 in words is "thirteen trillion, one hundred twenty billion, four hundred thirty million, twenty thousand, two hundred twenty".