32121320213 has 2 divisors, whose sum is σ = 32121320214. Its totient is φ = 32121320212.

The previous prime is 32121320177. The next prime is 32121320227. The reversal of 32121320213 is 31202312123.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27192999409 + 4928320804 = 164903^2 + 70202^2 .

It is a cyclic number.

It is not a de Polignac number, because 32121320213 - 2¹⁸ = 32121058069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32121320113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16060660106 + 16060660107.

It is an arithmetic number, because the mean of its divisors is an integer number (16060660107).

Almost surely, 2^32121320213 is an apocalyptic number.

It is an amenable number.

32121320213 is a deficient number, since it is larger than the sum of its proper divisors (1).

32121320213 is an equidigital number, since it uses as much as digits as its factorization.

32121320213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 32121320213 its reverse (31202312123), we get a palindrome (63323632336).

The spelling of 32121320213 in words is "thirty-two billion, one hundred twenty-one million, three hundred twenty thousand, two hundred thirteen".