32330021993 has 2 divisors, whose sum is σ = 32330021994. Its totient is φ = 32330021992.

The previous prime is 32330021989. The next prime is 32330022019. The reversal of 32330021993 is 39912003323.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29732794624 + 2597227369 = 172432^2 + 50963^2 .

It is an emirp because it is prime and its reverse (39912003323) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 32330021993 - 2² = 32330021989 is a prime.

It is not a weakly prime, because it can be changed into another prime (32330021953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16165010996 + 16165010997.

It is an arithmetic number, because the mean of its divisors is an integer number (16165010997).

Almost surely, 2^32330021993 is an apocalyptic number.

It is an amenable number.

32330021993 is a deficient number, since it is larger than the sum of its proper divisors (1).

32330021993 is an equidigital number, since it uses as much as digits as its factorization.

32330021993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 26244, while the sum is 35.

The spelling of 32330021993 in words is "thirty-two billion, three hundred thirty million, twenty-one thousand, nine hundred ninety-three".