434200243421 has 4 divisors (see below), whose sum is σ = 496228849632. Its totient is φ = 372171637212.

The previous prime is 434200243417. The next prime is 434200243471. The reversal of 434200243421 is 124342002434.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 434200243421 - 2² = 434200243417 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (434200243471) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31014303095 + ... + 31014303108.

It is an arithmetic number, because the mean of its divisors is an integer number (124057212408).

Almost surely, 2^434200243421 is an apocalyptic number.

It is an amenable number.

434200243421 is a deficient number, since it is larger than the sum of its proper divisors (62028606211).

434200243421 is an equidigital number, since it uses as much as digits as its factorization.

434200243421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62028606210.

The product of its (nonzero) digits is 18432, while the sum is 29.

Adding to 434200243421 its reverse (124342002434), we get a palindrome (558542245855).

The spelling of 434200243421 in words is "four hundred thirty-four billion, two hundred million, two hundred forty-three thousand, four hundred twenty-one".