121001273 has 2 divisors, whose sum is σ = 121001274. Its totient is φ = 121001272.

The previous prime is 121001249. The next prime is 121001281. The reversal of 121001273 is 372100121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 62141689 + 58859584 = 7883^2 + 7672^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121001273 is a prime.

It is not a weakly prime, because it can be changed into another prime (121001203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60500636 + 60500637.

It is an arithmetic number, because the mean of its divisors is an integer number (60500637).

Almost surely, 2^121001273 is an apocalyptic number.

It is an amenable number.

121001273 is a deficient number, since it is larger than the sum of its proper divisors (1).

121001273 is an equidigital number, since it uses as much as digits as its factorization.

121001273 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 84, while the sum is 17.

The square root of 121001273 is about 11000.0578634842. The cubic root of 121001273 is about 494.6104788558.

Adding to 121001273 its reverse (372100121), we get a palindrome (493101394).

The spelling of 121001273 in words is "one hundred twenty-one million, one thousand, two hundred seventy-three".