320214431 has 12 divisors (see below), whose sum is σ = 346458528. Its totient is φ = 294931392.

The previous prime is 320214403. The next prime is 320214443. The reversal of 320214431 is 134412023.

It is not a de Polignac number, because 320214431 - 2¹⁰ = 320213407 is a prime.

It is a super-2 number, since 2×320214431² = 205074563641307522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320214451) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33290 + ... + 41816.

It is an arithmetic number, because the mean of its divisors is an integer number (28871544).

Almost surely, 2^320214431 is an apocalyptic number.

320214431 is a deficient number, since it is larger than the sum of its proper divisors (26244097).

320214431 is an equidigital number, since it uses as much as digits as its factorization.

320214431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8638 (or 8591 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 320214431 is about 17894.5363449294. The cubic root of 320214431 is about 684.1431244960.

Adding to 320214431 its reverse (134412023), we get a palindrome (454626454).

The spelling of 320214431 in words is "three hundred twenty million, two hundred fourteen thousand, four hundred thirty-one".