12123312430 has 8 divisors (see below), whose sum is σ = 21821962392. Its totient is φ = 4849324968.

The previous prime is 12123312413. The next prime is 12123312433. The reversal of 12123312430 is 3421332121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12123312433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 606165612 + ... + 606165631.

It is an arithmetic number, because the mean of its divisors is an integer number (2727745299).

Almost surely, 2^12123312430 is an apocalyptic number.

12123312430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12123312430 is a deficient number, since it is larger than the sum of its proper divisors (9698649962).

12123312430 is a wasteful number, since it uses less digits than its factorization.

12123312430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1212331250.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 12123312430 its reverse (3421332121), we get a palindrome (15544644551).

The spelling of 12123312430 in words is "twelve billion, one hundred twenty-three million, three hundred twelve thousand, four hundred thirty".