420553322244121 has 8 divisors (see below), whose sum is σ = 458785690206624. Its totient is φ = 382320995574720.

The previous prime is 420553322244109. The next prime is 420553322244127. The reversal of 420553322244121 is 121442223355024.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-420553322244121 is a prime.

It is not an unprimeable number, because it can be changed into a prime (420553322244127) 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, 13327665 + ... + 31917601.

It is an arithmetic number, because the mean of its divisors is an integer number (57348211275828).

Almost surely, 2^{420553322244121} is an apocalyptic number.

It is an amenable number.

420553322244121 is a deficient number, since it is larger than the sum of its proper divisors (38232367962503).

420553322244121 is a wasteful number, since it uses less digits than its factorization.

420553322244121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20646551.

The product of its (nonzero) digits is 460800, while the sum is 40.

Adding to 420553322244121 its reverse (121442223355024), we get a palindrome (541995545599145).

The spelling of 420553322244121 in words is "four hundred twenty trillion, five hundred fifty-three billion, three hundred twenty-two million, two hundred forty-four thousand, one hundred twenty-one".