121320241 has 4 divisors (see below), whose sum is σ = 138651712. Its totient is φ = 103988772.

The previous prime is 121320223. The next prime is 121320257. The reversal of 121320241 is 142023121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 121320241 - 2¹³ = 121312049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121320841) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8665725 + ... + 8665738.

It is an arithmetic number, because the mean of its divisors is an integer number (34662928).

Almost surely, 2^121320241 is an apocalyptic number.

It is an amenable number.

121320241 is a deficient number, since it is larger than the sum of its proper divisors (17331471).

121320241 is an equidigital number, since it uses as much as digits as its factorization.

121320241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17331470.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 121320241 is about 11014.5467904948. The cubic root of 121320241 is about 495.0447070460.

Adding to 121320241 its reverse (142023121), we get a palindrome (263343362).

The spelling of 121320241 in words is "one hundred twenty-one million, three hundred twenty thousand, two hundred forty-one".