231114217 has 2 divisors, whose sum is σ = 231114218. Its totient is φ = 231114216.

The previous prime is 231114211. The next prime is 231114241. The reversal of 231114217 is 712411132.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 213043216 + 18071001 = 14596^2 + 4251^2 .

It is a cyclic number.

It is not a de Polignac number, because 231114217 - 2³ = 231114209 is a prime.

It is not a weakly prime, because it can be changed into another prime (231114211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115557108 + 115557109.

It is an arithmetic number, because the mean of its divisors is an integer number (115557109).

Almost surely, 2^231114217 is an apocalyptic number.

It is an amenable number.

231114217 is a deficient number, since it is larger than the sum of its proper divisors (1).

231114217 is an equidigital number, since it uses as much as digits as its factorization.

231114217 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 336, while the sum is 22.

The square root of 231114217 is about 15202.4411526570. The cubic root of 231114217 is about 613.6803545481.

Adding to 231114217 its reverse (712411132), we get a palindrome (943525349).

The spelling of 231114217 in words is "two hundred thirty-one million, one hundred fourteen thousand, two hundred seventeen".