108520321 has 16 divisors (see below), whose sum is σ = 136410624. Its totient is φ = 84032064.

The previous prime is 108520289. The next prime is 108520331. The reversal of 108520321 is 123025801.

It is a cyclic number.

It is not a de Polignac number, because 108520321 - 2⁵ = 108520289 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 108520292 and 108520301.

It is not an unprimeable number, because it can be changed into a prime (108520331) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8410 + ... + 16963.

It is an arithmetic number, because the mean of its divisors is an integer number (8525664).

Almost surely, 2^108520321 is an apocalyptic number.

It is an amenable number.

108520321 is a deficient number, since it is larger than the sum of its proper divisors (27890303).

108520321 is a wasteful number, since it uses less digits than its factorization.

108520321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25440.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 108520321 is about 10417.3087215461. The cubic root of 108520321 is about 476.9838667123.

The spelling of 108520321 in words is "one hundred eight million, five hundred twenty thousand, three hundred twenty-one".