231323415 has 16 divisors (see below), whose sum is σ = 371441376. Its totient is φ = 122931200.

The previous prime is 231323413. The next prime is 231323441. The reversal of 231323415 is 514323132.

It is not a de Polignac number, because 231323415 - 2¹ = 231323413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231323413) 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 15 ways as a sum of consecutive naturals, for example, 23226 + ... + 31655.

It is an arithmetic number, because the mean of its divisors is an integer number (23215086).

Almost surely, 2^231323415 is an apocalyptic number.

231323415 is a deficient number, since it is larger than the sum of its proper divisors (140117961).

231323415 is a wasteful number, since it uses less digits than its factorization.

231323415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55170.

The product of its digits is 2160, while the sum is 24.

The square root of 231323415 is about 15209.3200045235. The cubic root of 231323415 is about 613.8654606952.

Adding to 231323415 its reverse (514323132), we get a palindrome (745646547).

The spelling of 231323415 in words is "two hundred thirty-one million, three hundred twenty-three thousand, four hundred fifteen".