128210323 has 2 divisors, whose sum is σ = 128210324. Its totient is φ = 128210322.

The previous prime is 128210317. The next prime is 128210351. The reversal of 128210323 is 323012821.

It is a weak prime.

It is an emirp because it is prime and its reverse (323012821) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-128210323 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 128210294 and 128210303.

It is not a weakly prime, because it can be changed into another prime (128210393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64105161 + 64105162.

It is an arithmetic number, because the mean of its divisors is an integer number (64105162).

Almost surely, 2^128210323 is an apocalyptic number.

128210323 is a deficient number, since it is larger than the sum of its proper divisors (1).

128210323 is an equidigital number, since it uses as much as digits as its factorization.

128210323 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 128210323 is about 11322.9997350525. Note that the first 3 decimals coincide. The cubic root of 128210323 is about 504.2443005494.

The spelling of 128210323 in words is "one hundred twenty-eight million, two hundred ten thousand, three hundred twenty-three".