231431105 has 8 divisors (see below), whose sum is σ = 279381312. Its totient is φ = 184035568.

The previous prime is 231431087. The next prime is 231431111. The reversal of 231431105 is 501134132.

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

It is a cyclic number.

It is not a de Polignac number, because 231431105 - 2¹⁰ = 231430081 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 137747 + ... + 139416.

It is an arithmetic number, because the mean of its divisors is an integer number (34922664).

Almost surely, 2^231431105 is an apocalyptic number.

It is an amenable number.

231431105 is a deficient number, since it is larger than the sum of its proper divisors (47950207).

231431105 is a wasteful number, since it uses less digits than its factorization.

231431105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277335.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 231431105 is about 15212.8598560560. The cubic root of 231431105 is about 613.9607052912.

Adding to 231431105 its reverse (501134132), we get a palindrome (732565237).

The spelling of 231431105 in words is "two hundred thirty-one million, four hundred thirty-one thousand, one hundred five".