123231224434 has 4 divisors (see below), whose sum is σ = 184846836654. Its totient is φ = 61615612216.

The previous prime is 123231224377. The next prime is 123231224449. The reversal of 123231224434 is 434422132321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 434422132321 = 593 ⋅732583697.

It can be written as a sum of positive squares in only one way, i.e., 102409600225 + 20821624209 = 320015^2 + 144297^2 .

It is a junction number, because it is equal to n+sod(n) for n = 123231224396 and 123231224405.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 30807806107 + ... + 30807806110.

Almost surely, 2^123231224434 is an apocalyptic number.

123231224434 is a deficient number, since it is larger than the sum of its proper divisors (61615612220).

123231224434 is an equidigital number, since it uses as much as digits as its factorization.

123231224434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61615612219.

The product of its digits is 27648, while the sum is 31.

Adding to 123231224434 its reverse (434422132321), we get a palindrome (557653356755).

The spelling of 123231224434 in words is "one hundred twenty-three billion, two hundred thirty-one million, two hundred twenty-four thousand, four hundred thirty-four".