12143123013 has 32 divisors (see below), whose sum is σ = 18895161600. Its totient is φ = 6933884160.

The previous prime is 12143123011. The next prime is 12143123029. The reversal of 12143123013 is 31032134121.

12143123013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12143123013 - 2¹ = 12143123011 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12143123011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1767481 + ... + 1774337.

It is an arithmetic number, because the mean of its divisors is an integer number (590473800).

Almost surely, 2^12143123013 is an apocalyptic number.

It is an amenable number.

12143123013 is a deficient number, since it is larger than the sum of its proper divisors (6752038587).

12143123013 is an equidigital number, since it uses as much as digits as its factorization.

12143123013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8602 (or 8588 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 12143123013 its reverse (31032134121), we get a palindrome (43175257134).

The spelling of 12143123013 in words is "twelve billion, one hundred forty-three million, one hundred twenty-three thousand, thirteen".