121321133 has 2 divisors, whose sum is σ = 121321134. Its totient is φ = 121321132.

The previous prime is 121321127. The next prime is 121321139. The reversal of 121321133 is 331123121.

It is a balanced prime because it is at equal distance from previous prime (121321127) and next prime (121321139).

It can be written as a sum of positive squares in only one way, i.e., 108951844 + 12369289 = 10438^2 + 3517^2 .

It is a cyclic number.

It is not a de Polignac number, because 121321133 - 2⁶ = 121321069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121321139) 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, 60660566 + 60660567.

It is an arithmetic number, because the mean of its divisors is an integer number (60660567).

Almost surely, 2^121321133 is an apocalyptic number.

It is an amenable number.

121321133 is a deficient number, since it is larger than the sum of its proper divisors (1).

121321133 is an equidigital number, since it uses as much as digits as its factorization.

121321133 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 108, while the sum is 17.

The square root of 121321133 is about 11014.5872823270. The cubic root of 121321133 is about 495.0459203054.

Adding to 121321133 its reverse (331123121), we get a palindrome (452444254).

The spelling of 121321133 in words is "one hundred twenty-one million, three hundred twenty-one thousand, one hundred thirty-three".