11773000121 has 2 divisors, whose sum is σ = 11773000122. Its totient is φ = 11773000120.

The previous prime is 11773000079. The next prime is 11773000159. The reversal of 11773000121 is 12100037711.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8425220521 + 3347779600 = 91789^2 + 57860^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11773000121 is a prime.

It is not a weakly prime, because it can be changed into another prime (11773000171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5886500060 + 5886500061.

It is an arithmetic number, because the mean of its divisors is an integer number (5886500061).

Almost surely, 2^11773000121 is an apocalyptic number.

It is an amenable number.

11773000121 is a deficient number, since it is larger than the sum of its proper divisors (1).

11773000121 is an equidigital number, since it uses as much as digits as its factorization.

11773000121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 294, while the sum is 23.

Adding to 11773000121 its reverse (12100037711), we get a palindrome (23873037832).

The spelling of 11773000121 in words is "eleven billion, seven hundred seventy-three million, one hundred twenty-one", and thus it is an aban number.