32121212987 has 2 divisors, whose sum is σ = 32121212988. Its totient is φ = 32121212986.

The previous prime is 32121212891. The next prime is 32121212993. The reversal of 32121212987 is 78921212123.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 32121212987 - 2¹⁴ = 32121196603 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 32121212987.

It is not a weakly prime, because it can be changed into another prime (32121212287) 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, 16060606493 + 16060606494.

It is an arithmetic number, because the mean of its divisors is an integer number (16060606494).

Almost surely, 2^32121212987 is an apocalyptic number.

32121212987 is a deficient number, since it is larger than the sum of its proper divisors (1).

32121212987 is an equidigital number, since it uses as much as digits as its factorization.

32121212987 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24192, while the sum is 38.

The spelling of 32121212987 in words is "thirty-two billion, one hundred twenty-one million, two hundred twelve thousand, nine hundred eighty-seven".