121113449 has 2 divisors, whose sum is σ = 121113450. Its totient is φ = 121113448.

The previous prime is 121113439. The next prime is 121113451. The reversal of 121113449 is 944311121.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 113273449 + 7840000 = 10643^2 + 2800^2 .

It is a cyclic number.

It is not a de Polignac number, because 121113449 - 2¹² = 121109353 is a prime.

Together with 121113451, it forms a pair of twin primes.

It is a Chen prime.

It is a zygodrome in base 5.

It is not a weakly prime, because it can be changed into another prime (121113439) 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, 60556724 + 60556725.

It is an arithmetic number, because the mean of its divisors is an integer number (60556725).

Almost surely, 2^121113449 is an apocalyptic number.

It is an amenable number.

121113449 is a deficient number, since it is larger than the sum of its proper divisors (1).

121113449 is an equidigital number, since it uses as much as digits as its factorization.

121113449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 864, while the sum is 26.

The square root of 121113449 is about 11005.1555645525. The cubic root of 121113449 is about 494.7632769406.

The spelling of 121113449 in words is "one hundred twenty-one million, one hundred thirteen thousand, four hundred forty-nine".