13421043200 has 120 divisors (see below), whose sum is σ = 33353957472. Its totient is φ = 5351915520.

The previous prime is 13421043179. The next prime is 13421043221. The reversal of 13421043200 is 234012431.

It is an interprime number because it is at equal distance from previous prime (13421043179) and next prime (13421043221).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

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, 4696172 + ... + 4699028.

Almost surely, 2^13421043200 is an apocalyptic number.

13421043200 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 13421043200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16676978736).

13421043200 is an abundant number, since it is smaller than the sum of its proper divisors (19932914272).

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

13421043200 is an equidigital number, since it uses as much as digits as its factorization.

13421043200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3252 (or 3231 counting only the distinct ones).

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

Adding to 13421043200 its reverse (234012431), we get a palindrome (13655055631).

The spelling of 13421043200 in words is "thirteen billion, four hundred twenty-one million, forty-three thousand, two hundred".