12013123 has 8 divisors (see below), whose sum is σ = 12640320. Its totient is φ = 11401920.

The previous prime is 12013117. The next prime is 12013189. The reversal of 12013123 is 32131021.

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

It is not a de Polignac number, because 12013123 - 2⁵ = 12013091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12013103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2443 + ... + 5476.

It is an arithmetic number, because the mean of its divisors is an integer number (1580040).

Almost surely, 2^12013123 is an apocalyptic number.

12013123 is a deficient number, since it is larger than the sum of its proper divisors (627197).

12013123 is an equidigital number, since it uses as much as digits as its factorization.

12013123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7997.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 12013123 is about 3465.9952394659. The cubic root of 12013123 is about 229.0262741349.

Adding to 12013123 its reverse (32131021), we get a palindrome (44144144).

The spelling of 12013123 in words is "twelve million, thirteen thousand, one hundred twenty-three".