12124040213 has 8 divisors (see below), whose sum is σ = 12334766400. Its totient is φ = 11913488608.

The previous prime is 12124040111. The next prime is 12124040221. The reversal of 12124040213 is 31204042121.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12124040213 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12124040233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100553 + ... + 185361.

It is an arithmetic number, because the mean of its divisors is an integer number (1541845800).

Almost surely, 2^12124040213 is an apocalyptic number.

It is an amenable number.

12124040213 is a deficient number, since it is larger than the sum of its proper divisors (210726187).

12124040213 is an equidigital number, since it uses as much as digits as its factorization.

12124040213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87291.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 12124040213 its reverse (31204042121), we get a palindrome (43328082334).

The spelling of 12124040213 in words is "twelve billion, one hundred twenty-four million, forty thousand, two hundred thirteen".