13241120420 has 72 divisors (see below), whose sum is σ = 30550419648. Its totient is φ = 4780873600.

The previous prime is 13241120407. The next prime is 13241120443. The reversal of 13241120420 is 2402114231.

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 = 13241120392 and 13241120401.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4882865 + ... + 4885575.

It is an arithmetic number, because the mean of its divisors is an integer number (424311384).

Almost surely, 2^13241120420 is an apocalyptic number.

13241120420 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 13241120420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15275209824).

13241120420 is an abundant number, since it is smaller than the sum of its proper divisors (17309299228).

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

13241120420 is a wasteful number, since it uses less digits than its factorization.

13241120420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3029 (or 2878 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 13241120420 its reverse (2402114231), we get a palindrome (15643234651).

The spelling of 13241120420 in words is "thirteen billion, two hundred forty-one million, one hundred twenty thousand, four hundred twenty".