13451421200 has 360 divisors, whose sum is σ = 40038919488. Its totient is φ = 4320476160.

The previous prime is 13451421187. The next prime is 13451421211. The reversal of 13451421200 is 212415431.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 23892119 + ... + 23892681.

Almost surely, 2^13451421200 is an apocalyptic number.

13451421200 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 13451421200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20019459744).

13451421200 is an abundant number, since it is smaller than the sum of its proper divisors (26587498288).

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

13451421200 is a wasteful number, since it uses less digits than its factorization.

13451421200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 671 (or 653 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

Adding to 13451421200 its reverse (212415431), we get a palindrome (13663836631).

The spelling of 13451421200 in words is "thirteen billion, four hundred fifty-one million, four hundred twenty-one thousand, two hundred".