231322933 has 2 divisors, whose sum is σ = 231322934. Its totient is φ = 231322932.

The previous prime is 231322913. The next prime is 231322939. The reversal of 231322933 is 339223132.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 209728324 + 21594609 = 14482^2 + 4647^2 .

It is a cyclic number.

It is not a de Polignac number, because 231322933 - 2¹⁷ = 231191861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231322939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115661466 + 115661467.

It is an arithmetic number, because the mean of its divisors is an integer number (115661467).

Almost surely, 2^231322933 is an apocalyptic number.

It is an amenable number.

231322933 is a deficient number, since it is larger than the sum of its proper divisors (1).

231322933 is an equidigital number, since it uses as much as digits as its factorization.

231322933 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5832, while the sum is 28.

The square root of 231322933 is about 15209.3041589680. The cubic root of 231322933 is about 613.8650343320.

The spelling of 231322933 in words is "two hundred thirty-one million, three hundred twenty-two thousand, nine hundred thirty-three".