128220383 has 2 divisors, whose sum is σ = 128220384. Its totient is φ = 128220382.

The previous prime is 128220373. The next prime is 128220403. The reversal of 128220383 is 383022821.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 128220383 - 2¹⁰ = 128219359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (128220373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64110191 + 64110192.

It is an arithmetic number, because the mean of its divisors is an integer number (64110192).

Almost surely, 2^128220383 is an apocalyptic number.

128220383 is a deficient number, since it is larger than the sum of its proper divisors (1).

128220383 is an equidigital number, since it uses as much as digits as its factorization.

128220383 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 128220383 is about 11323.4439549105. The cubic root of 128220383 is about 504.2574886840.

The spelling of 128220383 in words is "one hundred twenty-eight million, two hundred twenty thousand, three hundred eighty-three".