232220320987 has 2 divisors, whose sum is σ = 232220320988. Its totient is φ = 232220320986.

The previous prime is 232220320979. The next prime is 232220321027. The reversal of 232220320987 is 789023022232.

232220320987 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (232220321027) can be obtained adding 232220320987 to its sum of digits (40).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 232220320987 - 2³ = 232220320979 is a prime.

It is not a weakly prime, because it can be changed into another prime (232220320957) 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, 116110160493 + 116110160494.

It is an arithmetic number, because the mean of its divisors is an integer number (116110160494).

Almost surely, 2^232220320987 is an apocalyptic number.

232220320987 is a deficient number, since it is larger than the sum of its proper divisors (1).

232220320987 is an equidigital number, since it uses as much as digits as its factorization.

232220320987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 145152, while the sum is 40.

The spelling of 232220320987 in words is "two hundred thirty-two billion, two hundred twenty million, three hundred twenty thousand, nine hundred eighty-seven".