121043233 has 4 divisors (see below), whose sum is σ = 121181508. Its totient is φ = 120904960.

The previous prime is 121043191. The next prime is 121043239. The reversal of 121043233 is 332340121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 332340121 = 439 ⋅757039.

It can be written as a sum of positive squares in 2 ways, for example, as 69605649 + 51437584 = 8343^2 + 7172^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121043233 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 121043233.

It is not an unprimeable number, because it can be changed into a prime (121043239) 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, 67816 + ... + 69577.

It is an arithmetic number, because the mean of its divisors is an integer number (30295377).

Almost surely, 2^121043233 is an apocalyptic number.

It is an amenable number.

121043233 is a deficient number, since it is larger than the sum of its proper divisors (138275).

121043233 is an equidigital number, since it uses as much as digits as its factorization.

121043233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138274.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 121043233 is about 11001.9649608604. The cubic root of 121043233 is about 494.6676448031.

Adding to 121043233 its reverse (332340121), we get a palindrome (453383354).

The spelling of 121043233 in words is "one hundred twenty-one million, forty-three thousand, two hundred thirty-three".