21143410020200 has 96 divisors (see below), whose sum is σ = 52947226264800. Its totient is φ = 7805709192960.

The previous prime is 21143410020119. The next prime is 21143410020209. The reversal of 21143410020200 is 202001434112.

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

It is not an unprimeable number, because it can be changed into a prime (21143410020209) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18206159 + ... + 19332641.

It is an arithmetic number, because the mean of its divisors is an integer number (551533606925).

Almost surely, 2^{21143410020200} is an apocalyptic number.

21143410020200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21143410020200 is an abundant number, since it is smaller than the sum of its proper divisors (31803816244600).

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

21143410020200 is a wasteful number, since it uses less digits than its factorization.

21143410020200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1133731 (or 1133722 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 21143410020200 its reverse (202001434112), we get a palindrome (21345411454312).

The spelling of 21143410020200 in words is "twenty-one trillion, one hundred forty-three billion, four hundred ten million, twenty thousand, two hundred".