121342241 has 4 divisors (see below), whose sum is σ = 122145984. Its totient is φ = 120538500.

The previous prime is 121342229. The next prime is 121342261. The reversal of 121342241 is 142243121.

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 121342241 - 2¹⁰ = 121341217 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (121342261) 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 in 3 ways as a sum of consecutive naturals, for example, 401645 + ... + 401946.

It is an arithmetic number, because the mean of its divisors is an integer number (30536496).

Almost surely, 2^121342241 is an apocalyptic number.

It is an amenable number.

121342241 is a deficient number, since it is larger than the sum of its proper divisors (803743).

121342241 is an equidigital number, since it uses as much as digits as its factorization.

121342241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 803742.

The product of its digits is 384, while the sum is 20.

The square root of 121342241 is about 11015.5454245353. The cubic root of 121342241 is about 495.0746287507.

Adding to 121342241 its reverse (142243121), we get a palindrome (263585362).

The spelling of 121342241 in words is "one hundred twenty-one million, three hundred forty-two thousand, two hundred forty-one".