4312434421 has 4 divisors (see below), whose sum is σ = 4566107052. Its totient is φ = 4058761792.

The previous prime is 4312434361. The next prime is 4312434443. The reversal of 4312434421 is 1244342134.

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 1340658225 + 2971776196 = 36615^2 + 54514^2 .

It is a cyclic number.

It is not a de Polignac number, because 4312434421 - 2²⁵ = 4278879989 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 4312434421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4312434461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 126836290 + ... + 126836323.

It is an arithmetic number, because the mean of its divisors is an integer number (1141526763).

Almost surely, 2^4312434421 is an apocalyptic number.

It is an amenable number.

4312434421 is a deficient number, since it is larger than the sum of its proper divisors (253672631).

4312434421 is a wasteful number, since it uses less digits than its factorization.

4312434421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253672630.

The product of its digits is 9216, while the sum is 28.

The square root of 4312434421 is about 65669.1283709476. The cubic root of 4312434421 is about 1627.6992671398.

Adding to 4312434421 its reverse (1244342134), we get a palindrome (5556776555).

The spelling of 4312434421 in words is "four billion, three hundred twelve million, four hundred thirty-four thousand, four hundred twenty-one".