12123019943318 has 8 divisors (see below), whose sum is σ = 18184554790248. Its totient is φ = 6061501679904.

The previous prime is 12123019943317. The next prime is 12123019943371. The reversal of 12123019943318 is 81334991032121.

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

It is a super-2 number, since 2×12123019943318² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12123019943317) 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, 2120396 + ... + 5361167.

It is an arithmetic number, because the mean of its divisors is an integer number (2273069348781).

Almost surely, 2^{12123019943318} is an apocalyptic number.

12123019943318 is a deficient number, since it is larger than the sum of its proper divisors (6061534846930).

12123019943318 is an equidigital number, since it uses as much as digits as its factorization.

12123019943318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8291758.

The product of its (nonzero) digits is 279936, while the sum is 47.

The spelling of 12123019943318 in words is "twelve trillion, one hundred twenty-three billion, nineteen million, nine hundred forty-three thousand, three hundred eighteen".