121367773 has 2 divisors, whose sum is σ = 121367774. Its totient is φ = 121367772.

The previous prime is 121367767. The next prime is 121367789. The reversal of 121367773 is 377763121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 113678244 + 7689529 = 10662^2 + 2773^2 .

It is an emirp because it is prime and its reverse (377763121) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121367773 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121367713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60683886 + 60683887.

It is an arithmetic number, because the mean of its divisors is an integer number (60683887).

Almost surely, 2^121367773 is an apocalyptic number.

It is an amenable number.

121367773 is a deficient number, since it is larger than the sum of its proper divisors (1).

121367773 is an equidigital number, since it uses as much as digits as its factorization.

121367773 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 37044, while the sum is 37.

The square root of 121367773 is about 11016.7042712419. The cubic root of 121367773 is about 495.1093497154.

It can be divided in two parts, 1213 and 67773, that added together give a palindrome (68986).

The spelling of 121367773 in words is "one hundred twenty-one million, three hundred sixty-seven thousand, seven hundred seventy-three".