421203040414121 has 8 divisors (see below), whose sum is σ = 482612370951360. Its totient is φ = 360103076782128.

The previous prime is 421203040414063. The next prime is 421203040414127. The reversal of 421203040414121 is 121414040302124.

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 421203040414121 - 2¹⁰ = 421203040413097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (421203040414127) 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, 77341723391 + ... + 77341728836.

It is an arithmetic number, because the mean of its divisors is an integer number (60326546368920).

Almost surely, 2^{421203040414121} is an apocalyptic number.

It is an amenable number.

421203040414121 is a deficient number, since it is larger than the sum of its proper divisors (61409330537239).

421203040414121 is a wasteful number, since it uses less digits than its factorization.

421203040414121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154683452623.

The product of its (nonzero) digits is 6144, while the sum is 29.

Adding to 421203040414121 its reverse (121414040302124), we get a palindrome (542617080716245).

The spelling of 421203040414121 in words is "four hundred twenty-one trillion, two hundred three billion, forty million, four hundred fourteen thousand, one hundred twenty-one".