121421023241 has 8 divisors (see below), whose sum is σ = 138770818560. Its totient is φ = 104072211648.

The previous prime is 121421023237. The next prime is 121421023253. The reversal of 121421023241 is 142320124121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 121421023241 - 2² = 121421023237 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121421023201) 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 7 ways as a sum of consecutive naturals, for example, 40865 + ... + 494481.

It is an arithmetic number, because the mean of its divisors is an integer number (17346352320).

Almost surely, 2^121421023241 is an apocalyptic number.

It is an amenable number.

121421023241 is a deficient number, since it is larger than the sum of its proper divisors (17349795319).

121421023241 is an equidigital number, since it uses as much as digits as its factorization.

121421023241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 491863.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 121421023241 its reverse (142320124121), we get a palindrome (263741147362).

The spelling of 121421023241 in words is "one hundred twenty-one billion, four hundred twenty-one million, twenty-three thousand, two hundred forty-one".