12123023230 has 32 divisors (see below), whose sum is σ = 22228992000. Its totient is φ = 4758922272.

The previous prime is 12123023201. The next prime is 12123023251. The reversal of 12123023230 is 3232032121.

It is a junction number, because it is equal to n+sod(n) for n = 12123023198 and 12123023207.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 336259 + ... + 370561.

It is an arithmetic number, because the mean of its divisors is an integer number (694656000).

Almost surely, 2^12123023230 is an apocalyptic number.

12123023230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12123023230 is a deficient number, since it is larger than the sum of its proper divisors (10105968770).

12123023230 is a wasteful number, since it uses less digits than its factorization.

12123023230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34968.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 12123023230 its reverse (3232032121), we get a palindrome (15355055351).

The spelling of 12123023230 in words is "twelve billion, one hundred twenty-three million, twenty-three thousand, two hundred thirty".