12123233343 has 12 divisors (see below), whose sum is σ = 18858363160. Its totient is φ = 7460451216.

The previous prime is 12123233257. The next prime is 12123233359. The reversal of 12123233343 is 34333232121.

12123233343 is a `hidden beast` number, since 1 + 2 + 1 + 2 + 323 + 334 + 3 = 666.

It is not a de Polignac number, because 12123233343 - 2¹² = 12123229247 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12123233383) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 51808573 + ... + 51808806.

Almost surely, 2^12123233343 is an apocalyptic number.

12123233343 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

12123233343 is a deficient number, since it is larger than the sum of its proper divisors (6735129817).

12123233343 is a wasteful number, since it uses less digits than its factorization.

12123233343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103617398 (or 103617395 counting only the distinct ones).

The product of its digits is 7776, while the sum is 27.

Adding to 12123233343 its reverse (34333232121), we get a palindrome (46456465464).

The spelling of 12123233343 in words is "twelve billion, one hundred twenty-three million, two hundred thirty-three thousand, three hundred forty-three".