420353003121 has 16 divisors (see below), whose sum is σ = 586195937280. Its totient is φ = 267429242960.

The previous prime is 420353003113. The next prime is 420353003137. The reversal of 420353003121 is 121300353024.

It is a cyclic number.

It is not a de Polignac number, because 420353003121 - 2³ = 420353003113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 420353003091 and 420353003100.

It is not an unprimeable number, because it can be changed into a prime (420353003101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7037631 + ... + 7097108.

It is an arithmetic number, because the mean of its divisors is an integer number (36637246080).

Almost surely, 2^420353003121 is an apocalyptic number.

It is an amenable number.

420353003121 is a deficient number, since it is larger than the sum of its proper divisors (165842934159).

420353003121 is a wasteful number, since it uses less digits than its factorization.

420353003121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14135196.

The product of its (nonzero) digits is 2160, while the sum is 24.

Adding to 420353003121 its reverse (121300353024), we get a palindrome (541653356145).

The spelling of 420353003121 in words is "four hundred twenty billion, three hundred fifty-three million, three thousand, one hundred twenty-one".