431311304 has 16 divisors (see below), whose sum is σ = 815078400. Its totient is φ = 213957072.

The previous prime is 431311273. The next prime is 431311313. The reversal of 431311304 is 403113134.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 211244 + ... + 213275.

It is an arithmetic number, because the mean of its divisors is an integer number (50942400).

Almost surely, 2^431311304 is an apocalyptic number.

It is an amenable number.

431311304 is a deficient number, since it is larger than the sum of its proper divisors (383767096).

431311304 is a wasteful number, since it uses less digits than its factorization.

431311304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 424652 (or 424648 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 431311304 is about 20768.0356317106. The cubic root of 431311304 is about 755.5507021154.

Adding to 431311304 its reverse (403113134), we get a palindrome (834424438).

The spelling of 431311304 in words is "four hundred thirty-one million, three hundred eleven thousand, three hundred four".