108963015093221 has 4 divisors (see below), whose sum is σ = 109758365568492. Its totient is φ = 108167664617952.

The previous prime is 108963015093203. The next prime is 108963015093239. The reversal of 108963015093221 is 122390510369801.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (108963015093203) and next prime (108963015093239).

It can be written as a sum of positive squares in 2 ways, for example, as 26905487702500 + 82057527390721 = 5187050^2 + 9058561^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-108963015093221 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 108963015093221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108963015293221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 397675237430 + ... + 397675237703.

It is an arithmetic number, because the mean of its divisors is an integer number (27439591392123).

Almost surely, 2^{108963015093221} is an apocalyptic number.

It is an amenable number.

108963015093221 is a deficient number, since it is larger than the sum of its proper divisors (795350475271).

108963015093221 is an equidigital number, since it uses as much as digits as its factorization.

108963015093221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 795350475270.

The product of its (nonzero) digits is 699840, while the sum is 50.

The spelling of 108963015093221 in words is "one hundred eight trillion, nine hundred sixty-three billion, fifteen million, ninety-three thousand, two hundred twenty-one".