13321110420 has 96 divisors (see below), whose sum is σ = 41466499200. Its totient is φ = 3550321152.

The previous prime is 13321110401. The next prime is 13321110421. The reversal of 13321110420 is 2401112331.

13321110420 is a `hidden beast` number, since 1 + 33 + 211 + 1 + 0 + 420 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 13321110393 and 13321110402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13321110421) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1143867 + ... + 1155453.

It is an arithmetic number, because the mean of its divisors is an integer number (431942700).

Almost surely, 2^13321110420 is an apocalyptic number.

13321110420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13321110420 is an abundant number, since it is smaller than the sum of its proper divisors (28145388780).

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

13321110420 is a wasteful number, since it uses less digits than its factorization.

13321110420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13734 (or 13726 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 13321110420 its reverse (2401112331), we get a palindrome (15722222751).

The spelling of 13321110420 in words is "thirteen billion, three hundred twenty-one million, one hundred ten thousand, four hundred twenty".