32313312209 has 2 divisors, whose sum is σ = 32313312210. Its totient is φ = 32313312208.

The previous prime is 32313312181. The next prime is 32313312313. The reversal of 32313312209 is 90221331323.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26429655184 + 5883657025 = 162572^2 + 76705^2 .

It is an emirp because it is prime and its reverse (90221331323) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-32313312209 is a prime.

It is not a weakly prime, because it can be changed into another prime (32313312509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16156656104 + 16156656105.

It is an arithmetic number, because the mean of its divisors is an integer number (16156656105).

Almost surely, 2^32313312209 is an apocalyptic number.

It is an amenable number.

32313312209 is a deficient number, since it is larger than the sum of its proper divisors (1).

32313312209 is an equidigital number, since it uses as much as digits as its factorization.

32313312209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5832, while the sum is 29.

The spelling of 32313312209 in words is "thirty-two billion, three hundred thirteen million, three hundred twelve thousand, two hundred nine".