434040043321 has 4 divisors (see below), whose sum is σ = 438096492432. Its totient is φ = 429983594212.

The previous prime is 434040043303. The next prime is 434040043331. The reversal of 434040043321 is 123340040434.

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 434040043321 - 2²³ = 434031654713 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 434040043321.

It is not an unprimeable number, because it can be changed into a prime (434040043331) 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, 2028224395 + ... + 2028224608.

It is an arithmetic number, because the mean of its divisors is an integer number (109524123108).

Almost surely, 2^434040043321 is an apocalyptic number.

It is an amenable number.

434040043321 is a deficient number, since it is larger than the sum of its proper divisors (4056449111).

434040043321 is a wasteful number, since it uses less digits than its factorization.

434040043321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4056449110.

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

Adding to 434040043321 its reverse (123340040434), we get a palindrome (557380083755).

The spelling of 434040043321 in words is "four hundred thirty-four billion, forty million, forty-three thousand, three hundred twenty-one".