1233000121 has 2 divisors, whose sum is σ = 1233000122. Its totient is φ = 1233000120.

The previous prime is 1233000091. The next prime is 1233000161. The reversal of 1233000121 is 1210003321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 701190400 + 531809721 = 26480^2 + 23061^2 .

It is an emirp because it is prime and its reverse (1210003321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1233000121 - 2¹¹ = 1232998073 is a prime.

It is not a weakly prime, because it can be changed into another prime (1233000161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 616500060 + 616500061.

It is an arithmetic number, because the mean of its divisors is an integer number (616500061).

Almost surely, 2^1233000121 is an apocalyptic number.

It is an amenable number.

1233000121 is a deficient number, since it is larger than the sum of its proper divisors (1).

1233000121 is an equidigital number, since it uses as much as digits as its factorization.

1233000121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 1233000121 is about 35114.1014551134. The cubic root of 1233000121 is about 1072.3116879853.

Adding to 1233000121 its reverse (1210003321), we get a palindrome (2443003442).

The spelling of 1233000121 in words is "one billion, two hundred thirty-three million, one hundred twenty-one", and thus it is an aban number.