4243232400421 has 8 divisors (see below), whose sum is σ = 4967686713024. Its totient is φ = 3548347651680.

The previous prime is 4243232400403. The next prime is 4243232400431. The reversal of 4243232400421 is 1240042323424.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4243232400421 - 2⁵ = 4243232400389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4243232400431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7392390655 + ... + 7392391228.

It is an arithmetic number, because the mean of its divisors is an integer number (620960839128).

Almost surely, 2^{4243232400421} is an apocalyptic number.

4243232400421 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

4243232400421 is a deficient number, since it is larger than the sum of its proper divisors (724454312603).

4243232400421 is a wasteful number, since it uses less digits than its factorization.

4243232400421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14784781931.

The product of its (nonzero) digits is 36864, while the sum is 31.

Adding to 4243232400421 its reverse (1240042323424), we get a palindrome (5483274723845).

The spelling of 4243232400421 in words is "four trillion, two hundred forty-three billion, two hundred thirty-two million, four hundred thousand, four hundred twenty-one".