431233123 has 4 divisors (see below), whose sum is σ = 431618248. Its totient is φ = 430848000.

The previous prime is 431233097. The next prime is 431233129. The reversal of 431233123 is 321332134.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 431233123 - 2⁵ = 431233091 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 431233094 and 431233103.

It is not an unprimeable number, because it can be changed into a prime (431233129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 190878 + ... + 193123.

It is an arithmetic number, because the mean of its divisors is an integer number (107904562).

Almost surely, 2^431233123 is an apocalyptic number.

431233123 is a deficient number, since it is larger than the sum of its proper divisors (385125).

431233123 is a wasteful number, since it uses less digits than its factorization.

431233123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385124.

The product of its digits is 1296, while the sum is 22.

The square root of 431233123 is about 20766.1533029110. The cubic root of 431233123 is about 755.5050480999.

Adding to 431233123 its reverse (321332134), we get a palindrome (752565257).

The spelling of 431233123 in words is "four hundred thirty-one million, two hundred thirty-three thousand, one hundred twenty-three".