121421410023 has 8 divisors (see below), whose sum is σ = 163467011968. Its totient is φ = 80161707384.

The previous prime is 121421410009. The next prime is 121421410027. The reversal of 121421410023 is 320014124121.

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

It is not a de Polignac number, because 121421410023 - 2⁴ = 121421410007 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121421410027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 196474465 + ... + 196475082.

It is an arithmetic number, because the mean of its divisors is an integer number (20433376496).

Almost surely, 2^121421410023 is an apocalyptic number.

121421410023 is a deficient number, since it is larger than the sum of its proper divisors (42045601945).

121421410023 is a wasteful number, since it uses less digits than its factorization.

121421410023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392949653.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 121421410023 its reverse (320014124121), we get a palindrome (441435534144).

The spelling of 121421410023 in words is "one hundred twenty-one billion, four hundred twenty-one million, four hundred ten thousand, twenty-three".