128768001331 has 2 divisors, whose sum is σ = 128768001332. Its totient is φ = 128768001330.

The previous prime is 128768001281. The next prime is 128768001353. The reversal of 128768001331 is 133100867821.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 128768001331 - 2⁷ = 128768001203 is a prime.

It is a super-2 number, since 2×128768001331² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (128768001391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64384000665 + 64384000666.

It is an arithmetic number, because the mean of its divisors is an integer number (64384000666).

Almost surely, 2^128768001331 is an apocalyptic number.

128768001331 is a deficient number, since it is larger than the sum of its proper divisors (1).

128768001331 is an equidigital number, since it uses as much as digits as its factorization.

128768001331 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48384, while the sum is 40.

The spelling of 128768001331 in words is "one hundred twenty-eight billion, seven hundred sixty-eight million, one thousand, three hundred thirty-one".