121133133 has 24 divisors (see below), whose sum is σ = 191876256. Its totient is φ = 73029600.

The previous prime is 121133123. The next prime is 121133141. The reversal of 121133133 is 331331121.

It is a happy number.

It is not a de Polignac number, because 121133133 - 2⁵ = 121133101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121133123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16398 + ... + 22608.

It is an arithmetic number, because the mean of its divisors is an integer number (7994844).

Almost surely, 2^121133133 is an apocalyptic number.

It is an amenable number.

121133133 is a deficient number, since it is larger than the sum of its proper divisors (70743123).

121133133 is a wasteful number, since it uses less digits than its factorization.

121133133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6425 (or 6422 counting only the distinct ones).

The product of its digits is 162, while the sum is 18.

The square root of 121133133 is about 11006.0498363400. The cubic root of 121133133 is about 494.7900793391.

Adding to 121133133 its reverse (331331121), we get a palindrome (452464254).

The spelling of 121133133 in words is "one hundred twenty-one million, one hundred thirty-three thousand, one hundred thirty-three".