128919732223 has 2 divisors, whose sum is σ = 128919732224. Its totient is φ = 128919732222.

The previous prime is 128919732157. The next prime is 128919732259. The reversal of 128919732223 is 322237919821.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 128919732223 - 2³³ = 120329797631 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (128919732283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64459866111 + 64459866112.

It is an arithmetic number, because the mean of its divisors is an integer number (64459866112).

Almost surely, 2^128919732223 is an apocalyptic number.

128919732223 is a deficient number, since it is larger than the sum of its proper divisors (1).

128919732223 is an equidigital number, since it uses as much as digits as its factorization.

128919732223 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 653184, while the sum is 49.

The spelling of 128919732223 in words is "one hundred twenty-eight billion, nine hundred nineteen million, seven hundred thirty-two thousand, two hundred twenty-three".