128332117061 has 2 divisors, whose sum is σ = 128332117062. Its totient is φ = 128332117060.

The previous prime is 128332117013. The next prime is 128332117127. The reversal of 128332117061 is 160711233821.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 92055200836 + 36276916225 = 303406^2 + 190465^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-128332117061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (128332117961) 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, 64166058530 + 64166058531.

It is an arithmetic number, because the mean of its divisors is an integer number (64166058531).

Almost surely, 2^128332117061 is an apocalyptic number.

It is an amenable number.

128332117061 is a deficient number, since it is larger than the sum of its proper divisors (1).

128332117061 is an equidigital number, since it uses as much as digits as its factorization.

128332117061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 35.

The spelling of 128332117061 in words is "one hundred twenty-eight billion, three hundred thirty-two million, one hundred seventeen thousand, sixty-one".