231304413 has 8 divisors (see below), whose sum is σ = 308508928. Its totient is φ = 154151424.

The previous prime is 231304379. The next prime is 231304417. The reversal of 231304413 is 314403132.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 231304413 - 2¹⁸ = 231042269 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 231304413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231304417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 781 + ... + 21522.

It is an arithmetic number, because the mean of its divisors is an integer number (38563616).

Almost surely, 2^231304413 is an apocalyptic number.

It is an amenable number.

231304413 is a deficient number, since it is larger than the sum of its proper divisors (77204515).

231304413 is a wasteful number, since it uses less digits than its factorization.

231304413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25763.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 231304413 is about 15208.6953089343. The cubic root of 231304413 is about 613.8486516303.

Adding to 231304413 its reverse (314403132), we get a palindrome (545707545).

The spelling of 231304413 in words is "two hundred thirty-one million, three hundred four thousand, four hundred thirteen".