32015421209 has 2 divisors, whose sum is σ = 32015421210. Its totient is φ = 32015421208.

The previous prime is 32015421199. The next prime is 32015421239. The reversal of 32015421209 is 90212451023.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25253977225 + 6761443984 = 158915^2 + 82228^2 .

It is an emirp because it is prime and its reverse (90212451023) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 32015421209 - 2²⁰ = 32014372633 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (32015421239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16007710604 + 16007710605.

It is an arithmetic number, because the mean of its divisors is an integer number (16007710605).

Almost surely, 2^32015421209 is an apocalyptic number.

It is an amenable number.

32015421209 is a deficient number, since it is larger than the sum of its proper divisors (1).

32015421209 is an equidigital number, since it uses as much as digits as its factorization.

32015421209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 29.

The spelling of 32015421209 in words is "thirty-two billion, fifteen million, four hundred twenty-one thousand, two hundred nine".