32321012161 has 2 divisors, whose sum is σ = 32321012162. Its totient is φ = 32321012160.

The previous prime is 32321012117. The next prime is 32321012179. The reversal of 32321012161 is 16121012323.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31990899600 + 330112561 = 178860^2 + 18169^2 .

It is a cyclic number.

It is not a de Polignac number, because 32321012161 - 2⁷ = 32321012033 is a prime.

It is a super-2 number, since 2×32321012161² (a number of 22 digits) contains 22 as substring.

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

It is not a weakly prime, because it can be changed into another prime (32321012261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16160506080 + 16160506081.

It is an arithmetic number, because the mean of its divisors is an integer number (16160506081).

Almost surely, 2^32321012161 is an apocalyptic number.

It is an amenable number.

32321012161 is a deficient number, since it is larger than the sum of its proper divisors (1).

32321012161 is an equidigital number, since it uses as much as digits as its factorization.

32321012161 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 22.

Adding to 32321012161 its reverse (16121012323), we get a palindrome (48442024484).

The spelling of 32321012161 in words is "thirty-two billion, three hundred twenty-one million, twelve thousand, one hundred sixty-one".