434430442121 has 4 divisors (see below), whose sum is σ = 467848168452. Its totient is φ = 401012715792.

The previous prime is 434430442097. The next prime is 434430442123. The reversal of 434430442121 is 121244034434.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 125199914896 + 309230527225 = 353836^2 + 556085^2 .

It is a de Polignac number, because none of the positive numbers 2^k-434430442121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (434430442123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16708863146 + ... + 16708863171.

It is an arithmetic number, because the mean of its divisors is an integer number (116962042113).

Almost surely, 2^434430442121 is an apocalyptic number.

It is an amenable number.

434430442121 is a deficient number, since it is larger than the sum of its proper divisors (33417726331).

434430442121 is a wasteful number, since it uses less digits than its factorization.

434430442121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33417726330.

The product of its (nonzero) digits is 36864, while the sum is 32.

Adding to 434430442121 its reverse (121244034434), we get a palindrome (555674476555).

The spelling of 434430442121 in words is "four hundred thirty-four billion, four hundred thirty million, four hundred forty-two thousand, one hundred twenty-one".