431121344 has 14 divisors (see below), whose sum is σ = 855506544. Its totient is φ = 215560640.

The previous prime is 431121331. The next prime is 431121347. The reversal of 431121344 is 443121134.

It is a super-2 number, since 2×431121344² = 371731226504732672, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431121347) 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 as a sum of consecutive naturals, namely, 3368072 + ... + 3368199.

Almost surely, 2^431121344 is an apocalyptic number.

It is an amenable number.

431121344 is a deficient number, since it is larger than the sum of its proper divisors (424385200).

431121344 is an equidigital number, since it uses as much as digits as its factorization.

431121344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6736283 (or 6736273 counting only the distinct ones).

The product of its digits is 1152, while the sum is 23.

The square root of 431121344 is about 20763.4617537635. The cubic root of 431121344 is about 755.4397648521.

Adding to 431121344 its reverse (443121134), we get a palindrome (874242478).

The spelling of 431121344 in words is "four hundred thirty-one million, one hundred twenty-one thousand, three hundred forty-four".