121203233 has 4 divisors (see below), whose sum is σ = 121285908. Its totient is φ = 121120560.

The previous prime is 121203193. The next prime is 121203347. The reversal of 121203233 is 332302121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 332302121 = 347 ⋅957643.

It can be written as a sum of positive squares in 2 ways, for example, as 92602129 + 28601104 = 9623^2 + 5348^2 .

It is a cyclic number.

It is not a de Polignac number, because 121203233 - 2¹⁰ = 121202209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121205233) 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, 39098 + ... + 42083.

It is an arithmetic number, because the mean of its divisors is an integer number (30321477).

Almost surely, 2^121203233 is an apocalyptic number.

It is an amenable number.

121203233 is a deficient number, since it is larger than the sum of its proper divisors (82675).

121203233 is an equidigital number, since it uses as much as digits as its factorization.

121203233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82674.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 121203233 is about 11009.2339878849. The cubic root of 121203233 is about 494.8855062884.

Adding to 121203233 its reverse (332302121), we get a palindrome (453505354).

The spelling of 121203233 in words is "one hundred twenty-one million, two hundred three thousand, two hundred thirty-three".