233313213209 has 2 divisors, whose sum is σ = 233313213210. Its totient is φ = 233313213208.

The previous prime is 233313213163. The next prime is 233313213241. The reversal of 233313213209 is 902312313332.

It is an a-pointer prime, because the next prime (233313213241) can be obtained adding 233313213209 to its sum of digits (32).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 204335641225 + 28977571984 = 452035^2 + 170228^2 .

It is a cyclic number.

It is not a de Polignac number, because 233313213209 - 2²⁴ = 233296435993 is a prime.

It is not a weakly prime, because it can be changed into another prime (233313213299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 116656606604 + 116656606605.

It is an arithmetic number, because the mean of its divisors is an integer number (116656606605).

Almost surely, 2^233313213209 is an apocalyptic number.

It is an amenable number.

233313213209 is a deficient number, since it is larger than the sum of its proper divisors (1).

233313213209 is an equidigital number, since it uses as much as digits as its factorization.

233313213209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17496, while the sum is 32.

The spelling of 233313213209 in words is "two hundred thirty-three billion, three hundred thirteen million, two hundred thirteen thousand, two hundred nine".