121133009 has 4 divisors (see below), whose sum is σ = 121476516. Its totient is φ = 120789504.

The previous prime is 121132997. The next prime is 121133017. The reversal of 121133009 is 900331121.

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

It can be written as a sum of positive squares in 2 ways, for example, as 58675600 + 62457409 = 7660^2 + 7903^2 .

It is a cyclic number.

It is not a de Polignac number, because 121133009 - 2⁴ = 121132993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121133069) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 171224 + ... + 171929.

It is an arithmetic number, because the mean of its divisors is an integer number (30369129).

Almost surely, 2^121133009 is an apocalyptic number.

It is an amenable number.

121133009 is a deficient number, since it is larger than the sum of its proper divisors (343507).

121133009 is an equidigital number, since it uses as much as digits as its factorization.

121133009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343506.

The product of its (nonzero) digits is 162, while the sum is 20.

The square root of 121133009 is about 11006.0442030731. The cubic root of 121133009 is about 494.7899105057.

The spelling of 121133009 in words is "one hundred twenty-one million, one hundred thirty-three thousand, nine".