423515454121 has 16 divisors (see below), whose sum is σ = 448056044800. Its totient is φ = 399204972288.

The previous prime is 423515454067. The next prime is 423515454151. The reversal of 423515454121 is 121454515324.

It is a cyclic number.

It is not a de Polignac number, because 423515454121 - 2¹³ = 423515445929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (423515454151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2949175 + ... + 3089443.

It is an arithmetic number, because the mean of its divisors is an integer number (28003502800).

Almost surely, 2^423515454121 is an apocalyptic number.

It is an amenable number.

423515454121 is a deficient number, since it is larger than the sum of its proper divisors (24540590679).

423515454121 is a wasteful number, since it uses less digits than its factorization.

423515454121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141088.

The product of its digits is 96000, while the sum is 37.

Adding to 423515454121 its reverse (121454515324), we get a palindrome (544969969445).

The spelling of 423515454121 in words is "four hundred twenty-three billion, five hundred fifteen million, four hundred fifty-four thousand, one hundred twenty-one".