4430230431421 has 4 divisors (see below), whose sum is σ = 4430377308700. Its totient is φ = 4430083554144.

The previous prime is 4430230431413. The next prime is 4430230431439. The reversal of 4430230431421 is 1241340320344.

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 1995113875225 + 2435116556196 = 1412485^2 + 1560486^2 .

It is a cyclic number.

It is not a de Polignac number, because 4430230431421 - 2³ = 4430230431413 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 (4430230431461) 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, 73393386 + ... + 73453723.

It is an arithmetic number, because the mean of its divisors is an integer number (1107594327175).

Almost surely, 2^{4430230431421} is an apocalyptic number.

It is an amenable number.

4430230431421 is a deficient number, since it is larger than the sum of its proper divisors (146877279).

4430230431421 is a wasteful number, since it uses less digits than its factorization.

4430230431421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146877278.

The product of its (nonzero) digits is 27648, while the sum is 31.

Adding to 4430230431421 its reverse (1241340320344), we get a palindrome (5671570751765).

The spelling of 4430230431421 in words is "four trillion, four hundred thirty billion, two hundred thirty million, four hundred thirty-one thousand, four hundred twenty-one".