121333005 has 16 divisors (see below), whose sum is σ = 215703360. Its totient is φ = 64710864.

The previous prime is 121333001. The next prime is 121333033. The reversal of 121333005 is 500333121.

It is not a de Polignac number, because 121333005 - 2² = 121333001 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121333001) 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, 449247 + ... + 449516.

It is an arithmetic number, because the mean of its divisors is an integer number (13481460).

Almost surely, 2^121333005 is an apocalyptic number.

121333005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

121333005 is a deficient number, since it is larger than the sum of its proper divisors (94370355).

121333005 is an equidigital number, since it uses as much as digits as its factorization.

121333005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 898777 (or 898771 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 18.

The square root of 121333005 is about 11015.1261908341. The cubic root of 121333005 is about 495.0620675155.

Adding to 121333005 its reverse (500333121), we get a palindrome (621666126).

The spelling of 121333005 in words is "one hundred twenty-one million, three hundred thirty-three thousand, five".