121266973 has 2 divisors, whose sum is σ = 121266974. Its totient is φ = 121266972.

The previous prime is 121266961. The next prime is 121266979. The reversal of 121266973 is 379662121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 118962649 + 2304324 = 10907^2 + 1518^2 .

It is an emirp because it is prime and its reverse (379662121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 121266973 - 2¹⁷ = 121135901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121266979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60633486 + 60633487.

It is an arithmetic number, because the mean of its divisors is an integer number (60633487).

Almost surely, 2^121266973 is an apocalyptic number.

It is an amenable number.

121266973 is a deficient number, since it is larger than the sum of its proper divisors (1).

121266973 is an equidigital number, since it uses as much as digits as its factorization.

121266973 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27216, while the sum is 37.

The square root of 121266973 is about 11012.1284500318. The cubic root of 121266973 is about 494.9722434526.

The spelling of 121266973 in words is "one hundred twenty-one million, two hundred sixty-six thousand, nine hundred seventy-three".