430131421 has 4 divisors (see below), whose sum is σ = 431845344. Its totient is φ = 428417500.

The previous prime is 430131397. The next prime is 430131439. The reversal of 430131421 is 124131034.

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 430131421 - 2¹¹ = 430129373 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 (430131721) 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, 856585 + ... + 857086.

It is an arithmetic number, because the mean of its divisors is an integer number (107961336).

Almost surely, 2^430131421 is an apocalyptic number.

It is an amenable number.

430131421 is a deficient number, since it is larger than the sum of its proper divisors (1713923).

430131421 is a wasteful number, since it uses less digits than its factorization.

430131421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1713922.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 430131421 is about 20739.6099529379. The cubic root of 430131421 is about 754.8611185563.

Adding to 430131421 its reverse (124131034), we get a palindrome (554262455).

The spelling of 430131421 in words is "four hundred thirty million, one hundred thirty-one thousand, four hundred twenty-one".