434240430121 has 16 divisors (see below), whose sum is σ = 461473885584. Its totient is φ = 407196002304.

The previous prime is 434240430119. The next prime is 434240430149. The reversal of 434240430121 is 121034042434.

It can be written as a sum of positive squares in 8 ways, for example, as 53853700096 + 380386730025 = 232064^2 + 616755^2 .

It is a cyclic number.

It is not a de Polignac number, because 434240430121 - 2¹ = 434240430119 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 434240430121.

It is not an unprimeable number, because it can be changed into a prime (434240436121) 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, 11756935 + ... + 11793811.

It is an arithmetic number, because the mean of its divisors is an integer number (28842117849).

Almost surely, 2^434240430121 is an apocalyptic number.

It is an amenable number.

434240430121 is a deficient number, since it is larger than the sum of its proper divisors (27233455463).

434240430121 is a wasteful number, since it uses less digits than its factorization.

434240430121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39420.

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 434240430121 its reverse (121034042434), we get a palindrome (555274472555).

The spelling of 434240430121 in words is "four hundred thirty-four billion, two hundred forty million, four hundred thirty thousand, one hundred twenty-one".