231133607 has 2 divisors, whose sum is σ = 231133608. Its totient is φ = 231133606.

The previous prime is 231133579. The next prime is 231133657. The reversal of 231133607 is 706331132.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 231133607 - 2⁶ = 231133543 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231133657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115566803 + 115566804.

It is an arithmetic number, because the mean of its divisors is an integer number (115566804).

Almost surely, 2^231133607 is an apocalyptic number.

231133607 is a deficient number, since it is larger than the sum of its proper divisors (1).

231133607 is an equidigital number, since it uses as much as digits as its factorization.

231133607 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2268, while the sum is 26.

The square root of 231133607 is about 15203.0788658087. The cubic root of 231133607 is about 613.6975162347.

Adding to 231133607 its reverse (706331132), we get a palindrome (937464739).

The spelling of 231133607 in words is "two hundred thirty-one million, one hundred thirty-three thousand, six hundred seven".