121133040331321 has 2 divisors, whose sum is σ = 121133040331322. Its totient is φ = 121133040331320.

The previous prime is 121133040331279. The next prime is 121133040331409. The reversal of 121133040331321 is 123133040331121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 103487487494400 + 17645552836921 = 10172880^2 + 4200661^2 .

It is a cyclic number.

It is not a de Polignac number, because 121133040331321 - 2³¹ = 121130892847673 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 121133040331321.

It is not a weakly prime, because it can be changed into another prime (121133040331921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60566520165660 + 60566520165661.

It is an arithmetic number, because the mean of its divisors is an integer number (60566520165661).

Almost surely, 2^{121133040331321} is an apocalyptic number.

It is an amenable number.

121133040331321 is a deficient number, since it is larger than the sum of its proper divisors (1).

121133040331321 is an equidigital number, since it uses as much as digits as its factorization.

121133040331321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 28.

Adding to 121133040331321 its reverse (123133040331121), we get a palindrome (244266080662442).

The spelling of 121133040331321 in words is "one hundred twenty-one trillion, one hundred thirty-three billion, forty million, three hundred thirty-one thousand, three hundred twenty-one".