232231011209 has 2 divisors, whose sum is σ = 232231011210. Its totient is φ = 232231011208.

The previous prime is 232231011191. The next prime is 232231011263. The reversal of 232231011209 is 902110132232.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 199733017225 + 32497993984 = 446915^2 + 180272^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-232231011209 is a prime.

It is not a weakly prime, because it can be changed into another prime (232231011269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 116115505604 + 116115505605.

It is an arithmetic number, because the mean of its divisors is an integer number (116115505605).

Almost surely, 2^232231011209 is an apocalyptic number.

It is an amenable number.

232231011209 is a deficient number, since it is larger than the sum of its proper divisors (1).

232231011209 is an equidigital number, since it uses as much as digits as its factorization.

232231011209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 26.

The spelling of 232231011209 in words is "two hundred thirty-two billion, two hundred thirty-one million, eleven thousand, two hundred nine".