21341254200 has 192 divisors, whose sum is σ = 77152800000. Its totient is φ = 4877953920.

The previous prime is 21341254199. The next prime is 21341254211. The reversal of 21341254200 is 245214312.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 153951 + ... + 257649.

It is an arithmetic number, because the mean of its divisors is an integer number (401837500).

Almost surely, 2^21341254200 is an apocalyptic number.

21341254200 is a gapful number since it is divisible by the number (20) 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 21341254200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38576400000).

21341254200 is an abundant number, since it is smaller than the sum of its proper divisors (55811545800).

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

21341254200 is a wasteful number, since it uses less digits than its factorization.

21341254200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103739 (or 103716 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

Adding to 21341254200 its reverse (245214312), we get a palindrome (21586468512).

The spelling of 21341254200 in words is "twenty-one billion, three hundred forty-one million, two hundred fifty-four thousand, two hundred".