431123830 has 16 divisors (see below), whose sum is σ = 776499984. Its totient is φ = 172343520.

The previous prime is 431123821. The next prime is 431123837. The reversal of 431123830 is 38321134.

It is a junction number, because it is equal to n+sod(n) for n = 431123795 and 431123804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431123837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5029 + ... + 29791.

It is an arithmetic number, because the mean of its divisors is an integer number (48531249).

Almost surely, 2^431123830 is an apocalyptic number.

431123830 is a deficient number, since it is larger than the sum of its proper divisors (345376154).

431123830 is a wasteful number, since it uses less digits than its factorization.

431123830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26511.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 431123830 is about 20763.5216184538. The cubic root of 431123830 is about 755.4412168947.

Adding to 431123830 its reverse (38321134), we get a palindrome (469444964).

The spelling of 431123830 in words is "four hundred thirty-one million, one hundred twenty-three thousand, eight hundred thirty".