108388321 has 2 divisors, whose sum is σ = 108388322. Its totient is φ = 108388320.

The previous prime is 108388309. The next prime is 108388333. The reversal of 108388321 is 123883801.

It is a balanced prime because it is at equal distance from previous prime (108388309) and next prime (108388333).

It can be written as a sum of positive squares in only one way, i.e., 91872225 + 16516096 = 9585^2 + 4064^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-108388321 is a prime.

It is not a weakly prime, because it can be changed into another prime (108388361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54194160 + 54194161.

It is an arithmetic number, because the mean of its divisors is an integer number (54194161).

Almost surely, 2^108388321 is an apocalyptic number.

It is an amenable number.

108388321 is a deficient number, since it is larger than the sum of its proper divisors (1).

108388321 is an equidigital number, since it uses as much as digits as its factorization.

108388321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9216, while the sum is 34.

The square root of 108388321 is about 10410.9711842844. The cubic root of 108388321 is about 476.7903932220.

The spelling of 108388321 in words is "one hundred eight million, three hundred eighty-eight thousand, three hundred twenty-one".