121301249 has 2 divisors, whose sum is σ = 121301250. Its totient is φ = 121301248.

The previous prime is 121301231. The next prime is 121301267. The reversal of 121301249 is 942103121.

It is a balanced prime because it is at equal distance from previous prime (121301231) and next prime (121301267).

It can be written as a sum of positive squares in only one way, i.e., 84916225 + 36385024 = 9215^2 + 6032^2 .

It is an emirp because it is prime and its reverse (942103121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 121301249 - 2²⁰ = 120252673 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (121301449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60650624 + 60650625.

It is an arithmetic number, because the mean of its divisors is an integer number (60650625).

Almost surely, 2^121301249 is an apocalyptic number.

It is an amenable number.

121301249 is a deficient number, since it is larger than the sum of its proper divisors (1).

121301249 is an equidigital number, since it uses as much as digits as its factorization.

121301249 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 121301249 is about 11013.6846241392. The cubic root of 121301249 is about 495.0188735449.

The spelling of 121301249 in words is "one hundred twenty-one million, three hundred one thousand, two hundred forty-nine".