121421301005 has 8 divisors (see below), whose sum is σ = 145710016992. Its totient is φ = 97134070288.

The previous prime is 121421300881. The next prime is 121421301013. The reversal of 121421301005 is 500103124121.

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 121421301005 - 2³⁰ = 120347559181 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 182759 + ... + 525588.

It is an arithmetic number, because the mean of its divisors is an integer number (18213752124).

Almost surely, 2^121421301005 is an apocalyptic number.

It is an amenable number.

121421301005 is a deficient number, since it is larger than the sum of its proper divisors (24288715987).

121421301005 is an equidigital number, since it uses as much as digits as its factorization.

121421301005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 742635.

The product of its (nonzero) digits is 240, while the sum is 20.

Adding to 121421301005 its reverse (500103124121), we get a palindrome (621524425126).

The spelling of 121421301005 in words is "one hundred twenty-one billion, four hundred twenty-one million, three hundred one thousand, five".