13443423120 has 160 divisors (see below), whose sum is σ = 47556896640. Its totient is φ = 3488002560.

The previous prime is 13443423089. The next prime is 13443423131. The reversal of 13443423120 is 2132434431.

13443423120 is a `hidden beast` number, since 1 + 3 + 4 + 4 + 342 + 312 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4186 + ... + 164025.

It is an arithmetic number, because the mean of its divisors is an integer number (297230604).

Almost surely, 2^13443423120 is an apocalyptic number.

13443423120 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 13443423120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23778448320).

13443423120 is an abundant number, since it is smaller than the sum of its proper divisors (34113473520).

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

13443423120 is a wasteful number, since it uses less digits than its factorization.

13443423120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168270 (or 168258 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 13443423120 its reverse (2132434431), we get a palindrome (15575857551).

The spelling of 13443423120 in words is "thirteen billion, four hundred forty-three million, four hundred twenty-three thousand, one hundred twenty".