32013320981 has 2 divisors, whose sum is σ = 32013320982. Its totient is φ = 32013320980.

The previous prime is 32013320921. The next prime is 32013321017. The reversal of 32013320981 is 18902331023.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31806939025 + 206381956 = 178345^2 + 14366^2 .

It is a cyclic number.

It is not a de Polignac number, because 32013320981 - 2⁶ = 32013320917 is a prime.

It is a super-2 number, since 2×32013320981² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32013320921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16006660490 + 16006660491.

It is an arithmetic number, because the mean of its divisors is an integer number (16006660491).

Almost surely, 2^32013320981 is an apocalyptic number.

It is an amenable number.

32013320981 is a deficient number, since it is larger than the sum of its proper divisors (1).

32013320981 is an equidigital number, since it uses as much as digits as its factorization.

32013320981 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 32.

The spelling of 32013320981 in words is "thirty-two billion, thirteen million, three hundred twenty thousand, nine hundred eighty-one".