128298323 has 2 divisors, whose sum is σ = 128298324. Its totient is φ = 128298322.

The previous prime is 128298281. The next prime is 128298353. The reversal of 128298323 is 323892821.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 128298323 - 2¹⁸ = 128036179 is a prime.

It is a super-2 number, since 2×128298323² = 32920919369224658, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (128298353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64149161 + 64149162.

It is an arithmetic number, because the mean of its divisors is an integer number (64149162).

Almost surely, 2^128298323 is an apocalyptic number.

128298323 is a deficient number, since it is larger than the sum of its proper divisors (1).

128298323 is an equidigital number, since it uses as much as digits as its factorization.

128298323 is an evil number, because the sum of its binary digits is even.

The product of its digits is 41472, while the sum is 38.

The square root of 128298323 is about 11326.8849645434. The cubic root of 128298323 is about 504.3596405861.

The spelling of 128298323 in words is "one hundred twenty-eight million, two hundred ninety-eight thousand, three hundred twenty-three".