200400431143421 has 8 divisors (see below), whose sum is σ = 209113635070080. Its totient is φ = 191687239025392.

The previous prime is 200400431143411. The next prime is 200400431143433. The reversal of 200400431143421 is 124341134004002.

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 200400431143421 - 2⁴⁶ = 130031686965757 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200400431143411) 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, 65345411 + ... + 68343423.

It is an arithmetic number, because the mean of its divisors is an integer number (26139204383760).

Almost surely, 2^{200400431143421} is an apocalyptic number.

It is an amenable number.

200400431143421 is a deficient number, since it is larger than the sum of its proper divisors (8713203926659).

200400431143421 is a wasteful number, since it uses less digits than its factorization.

200400431143421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5904315.

The product of its (nonzero) digits is 9216, while the sum is 29.

Adding to 200400431143421 its reverse (124341134004002), we get a palindrome (324741565147423).

The spelling of 200400431143421 in words is "two hundred trillion, four hundred billion, four hundred thirty-one million, one hundred forty-three thousand, four hundred twenty-one".