121233009 has 8 divisors (see below), whose sum is σ = 161705952. Its totient is φ = 80791040.

The previous prime is 121232987. The next prime is 121233019. The reversal of 121233009 is 900332121.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 121233009 - 2⁸ = 121232753 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121233019) by changing a digit.

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, 3889 + ... + 16049.

It is an arithmetic number, because the mean of its divisors is an integer number (20213244).

Almost surely, 2^121233009 is an apocalyptic number.

It is an amenable number.

121233009 is a deficient number, since it is larger than the sum of its proper divisors (40472943).

121233009 is a wasteful number, since it uses less digits than its factorization.

121233009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15487.

The product of its (nonzero) digits is 324, while the sum is 21.

The square root of 121233009 is about 11010.5862241754. The cubic root of 121233009 is about 494.9260291466.

The spelling of 121233009 in words is "one hundred twenty-one million, two hundred thirty-three thousand, nine".