128410321 has 8 divisors (see below), whose sum is σ = 138414080. Its totient is φ = 118424592.

The previous prime is 128410301. The next prime is 128410363. The reversal of 128410321 is 123014821.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 128410321 - 2¹⁵ = 128377553 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 128410292 and 128410301.

It is not an unprimeable number, because it can be changed into a prime (128410301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12766 + ... + 20488.

It is an arithmetic number, because the mean of its divisors is an integer number (17301760).

Almost surely, 2^128410321 is an apocalyptic number.

It is an amenable number.

128410321 is a deficient number, since it is larger than the sum of its proper divisors (10003759).

128410321 is a wasteful number, since it uses less digits than its factorization.

128410321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9015.

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 128410321 is about 11331.8277872548. The cubic root of 128410321 is about 504.5063581238.

The spelling of 128410321 in words is "one hundred twenty-eight million, four hundred ten thousand, three hundred twenty-one".