121233101321 has 2 divisors, whose sum is σ = 121233101322. Its totient is φ = 121233101320.

The previous prime is 121233101309. The next prime is 121233101333. The reversal of 121233101321 is 123101332121.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (121233101309) and next prime (121233101333).

It can be written as a sum of positive squares in only one way, i.e., 97965870025 + 23267231296 = 312995^2 + 152536^2 .

It is an emirp because it is prime and its reverse (123101332121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 121233101321 - 2⁶ = 121233101257 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 121233101293 and 121233101302.

It is not a weakly prime, because it can be changed into another prime (121233106321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60616550660 + 60616550661.

It is an arithmetic number, because the mean of its divisors is an integer number (60616550661).

Almost surely, 2^121233101321 is an apocalyptic number.

It is an amenable number.

121233101321 is a deficient number, since it is larger than the sum of its proper divisors (1).

121233101321 is an equidigital number, since it uses as much as digits as its factorization.

121233101321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 121233101321 its reverse (123101332121), we get a palindrome (244334433442).

The spelling of 121233101321 in words is "one hundred twenty-one billion, two hundred thirty-three million, one hundred one thousand, three hundred twenty-one".