2143203324400 has 60 divisors (see below), whose sum is σ = 5211082766232. Its totient is φ = 846952625920.

The previous prime is 2143203324343. The next prime is 2143203324433. The reversal of 2143203324400 is 44233023412.

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, 32243959 + ... + 32310358.

Almost surely, 2^{2143203324400} is an apocalyptic number.

2143203324400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2143203324400 is an abundant number, since it is smaller than the sum of its proper divisors (3067879441832).

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

2143203324400 is a wasteful number, since it uses less digits than its factorization.

2143203324400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64554418 (or 64554407 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 2143203324400 its reverse (44233023412), we get a palindrome (2187436347812).

The spelling of 2143203324400 in words is "two trillion, one hundred forty-three billion, two hundred three million, three hundred twenty-four thousand, four hundred".