12010013123 has 4 divisors (see below), whose sum is σ = 12012715848. Its totient is φ = 12007310400.

The previous prime is 12010013089. The next prime is 12010013129. The reversal of 12010013123 is 32131001021.

12010013123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12010013123 - 2⁸ = 12010012867 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12010013098 and 12010013107.

It is not an unprimeable number, because it can be changed into a prime (12010013129) 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 3 ways as a sum of consecutive naturals, for example, 1344686 + ... + 1353587.

It is an arithmetic number, because the mean of its divisors is an integer number (3003178962).

Almost surely, 2^12010013123 is an apocalyptic number.

12010013123 is a deficient number, since it is larger than the sum of its proper divisors (2702725).

12010013123 is an equidigital number, since it uses as much as digits as its factorization.

12010013123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2702724.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 12010013123 its reverse (32131001021), we get a palindrome (44141014144).

The spelling of 12010013123 in words is "twelve billion, ten million, thirteen thousand, one hundred twenty-three".