13401224320 has 96 divisors (see below), whose sum is σ = 35214758460. Its totient is φ = 4873144320.

The previous prime is 13401224311. The next prime is 13401224341. The reversal of 13401224320 is 2342210431.

It can be written as a sum of positive squares in 2 ways, for example, as 13350415936 + 50808384 = 115544^2 + 7128^2 .

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 13401224291 and 13401224300.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9087 + ... + 163966.

Almost surely, 2^13401224320 is an apocalyptic number.

13401224320 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 13401224320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17607379230).

13401224320 is an abundant number, since it is smaller than the sum of its proper divisors (21813534140).

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

13401224320 is a wasteful number, since it uses less digits than its factorization.

13401224320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173094 (or 173071 counting only the distinct ones).

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

Adding to 13401224320 its reverse (2342210431), we get a palindrome (15743434751).

The spelling of 13401224320 in words is "thirteen billion, four hundred one million, two hundred twenty-four thousand, three hundred twenty".