213232033309 has 2 divisors, whose sum is σ = 213232033310. Its totient is φ = 213232033308.

The previous prime is 213232033279. The next prime is 213232033349. The reversal of 213232033309 is 903330232312.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 133963320100 + 79268713209 = 366010^2 + 281547^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-213232033309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213232033349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106616016654 + 106616016655.

It is an arithmetic number, because the mean of its divisors is an integer number (106616016655).

Almost surely, 2^213232033309 is an apocalyptic number.

It is an amenable number.

213232033309 is a deficient number, since it is larger than the sum of its proper divisors (1).

213232033309 is an equidigital number, since it uses as much as digits as its factorization.

213232033309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17496, while the sum is 31.

The spelling of 213232033309 in words is "two hundred thirteen billion, two hundred thirty-two million, thirty-three thousand, three hundred nine".