1121220120973 has 2 divisors, whose sum is σ = 1121220120974. Its totient is φ = 1121220120972.

The previous prime is 1121220120967. The next prime is 1121220121013. The reversal of 1121220120973 is 3790210221211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 931182540484 + 190037580489 = 964978^2 + 435933^2 .

It is a cyclic number.

It is not a de Polignac number, because 1121220120973 - 2¹³ = 1121220112781 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1121220120173) 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, 560610060486 + 560610060487.

It is an arithmetic number, because the mean of its divisors is an integer number (560610060487).

Almost surely, 2^{1121220120973} is an apocalyptic number.

It is an amenable number.

1121220120973 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121220120973 is an equidigital number, since it uses as much as digits as its factorization.

1121220120973 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 31.

The spelling of 1121220120973 in words is "one trillion, one hundred twenty-one billion, two hundred twenty million, one hundred twenty thousand, nine hundred seventy-three".