231340214 has 8 divisors (see below), whose sum is σ = 396583248. Its totient is φ = 99145800.

The previous prime is 231340171. The next prime is 231340229. The reversal of 231340214 is 412043132.

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

It is a super-2 number, since 2×231340214² = 107036589227131592, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 8262137 + ... + 8262164.

It is an arithmetic number, because the mean of its divisors is an integer number (49572906).

Almost surely, 2^231340214 is an apocalyptic number.

231340214 is a deficient number, since it is larger than the sum of its proper divisors (165243034).

231340214 is a wasteful number, since it uses less digits than its factorization.

231340214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16524310.

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

The square root of 231340214 is about 15209.8722545589. The cubic root of 231340214 is about 613.8803202318.

Adding to 231340214 its reverse (412043132), we get a palindrome (643383346).

The spelling of 231340214 in words is "two hundred thirty-one million, three hundred forty thousand, two hundred fourteen".