431344123 has 16 divisors (see below), whose sum is σ = 498398400. Its totient is φ = 365671296.

The previous prime is 431344117. The next prime is 431344141. The reversal of 431344123 is 321443134.

It is a cyclic number.

It is not a de Polignac number, because 431344123 - 2⁵ = 431344091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (431344183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 288165 + ... + 289657.

It is an arithmetic number, because the mean of its divisors is an integer number (31149900).

Almost surely, 2^431344123 is an apocalyptic number.

431344123 is a deficient number, since it is larger than the sum of its proper divisors (67054277).

431344123 is a wasteful number, since it uses less digits than its factorization.

431344123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1926.

The product of its digits is 3456, while the sum is 25.

The square root of 431344123 is about 20768.8257491848. The cubic root of 431344123 is about 755.5698652190.

Adding to 431344123 its reverse (321443134), we get a palindrome (752787257).

The spelling of 431344123 in words is "four hundred thirty-one million, three hundred forty-four thousand, one hundred twenty-three".