121330805 has 8 divisors (see below), whose sum is σ = 145666944. Its totient is φ = 97018000.

The previous prime is 121330793. The next prime is 121330813. The reversal of 121330805 is 508033121.

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

It is a de Polignac number, because none of the positive numbers 2^k-121330805 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9080 + ... + 18030.

It is an arithmetic number, because the mean of its divisors is an integer number (18208368).

Almost surely, 2^121330805 is an apocalyptic number.

It is an amenable number.

121330805 is a deficient number, since it is larger than the sum of its proper divisors (24336139).

121330805 is an equidigital number, since it uses as much as digits as its factorization.

121330805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11667.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 121330805 is about 11015.0263277034. The cubic root of 121330805 is about 495.0590753560.

Adding to 121330805 its reverse (508033121), we get a palindrome (629363926).

The spelling of 121330805 in words is "one hundred twenty-one million, three hundred thirty thousand, eight hundred five".