531340312 has 24 divisors (see below), whose sum is σ = 1014104700. Its totient is φ = 260921120.

The previous prime is 531340307. The next prime is 531340343. The reversal of 531340312 is 213043135.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 500262 + ... + 501322.

Almost surely, 2^531340312 is an apocalyptic number.

It is an amenable number.

531340312 is a deficient number, since it is larger than the sum of its proper divisors (482764388).

531340312 is an equidigital number, since it uses as much as digits as its factorization.

531340312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2187 (or 1122 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 531340312 is about 23050.8202023269. The cubic root of 531340312 is about 809.9488419654.

Adding to 531340312 its reverse (213043135), we get a palindrome (744383447).

The spelling of 531340312 in words is "five hundred thirty-one million, three hundred forty thousand, three hundred twelve".