232120200209 has 2 divisors, whose sum is σ = 232120200210. Its totient is φ = 232120200208.

The previous prime is 232120200199. The next prime is 232120200211. The reversal of 232120200209 is 902002021232.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 211650603025 + 20469597184 = 460055^2 + 143072^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-232120200209 is a prime.

Together with 232120200211, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (232120200229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 116060100104 + 116060100105.

It is an arithmetic number, because the mean of its divisors is an integer number (116060100105).

Almost surely, 2^232120200209 is an apocalyptic number.

It is an amenable number.

232120200209 is a deficient number, since it is larger than the sum of its proper divisors (1).

232120200209 is an equidigital number, since it uses as much as digits as its factorization.

232120200209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 23.

The spelling of 232120200209 in words is "two hundred thirty-two billion, one hundred twenty million, two hundred thousand, two hundred nine".