121133233 has 4 divisors (see below), whose sum is σ = 130451188. Its totient is φ = 111815280.

The previous prime is 121133231. The next prime is 121133237. The reversal of 121133233 is 332331121.

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 12723489 + 108409744 = 3567^2 + 10412^2 .

It is a cyclic number.

It is not a de Polignac number, because 121133233 - 2¹ = 121133231 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 121133233.

It is not an unprimeable number, because it can be changed into a prime (121133231) 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 3 ways as a sum of consecutive naturals, for example, 4658958 + ... + 4658983.

It is an arithmetic number, because the mean of its divisors is an integer number (32612797).

Almost surely, 2^121133233 is an apocalyptic number.

121133233 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

121133233 is a deficient number, since it is larger than the sum of its proper divisors (9317955).

121133233 is an equidigital number, since it uses as much as digits as its factorization.

121133233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9317954.

The product of its digits is 324, while the sum is 19.

The square root of 121133233 is about 11006.0543792951. The cubic root of 121133233 is about 494.7902154951.

Adding to 121133233 its reverse (332331121), we get a palindrome (453464354).

The spelling of 121133233 in words is "one hundred twenty-one million, one hundred thirty-three thousand, two hundred thirty-three".