12126001420103 has 4 divisors (see below), whose sum is σ = 12126659280528. Its totient is φ = 12125343559680.

The previous prime is 12126001420069. The next prime is 12126001420109. The reversal of 12126001420103 is 30102410062121.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12126001420103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12126001420109) 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, 328902563 + ... + 328939428.

It is an arithmetic number, because the mean of its divisors is an integer number (3031664820132).

Almost surely, 2^{12126001420103} is an apocalyptic number.

12126001420103 is a deficient number, since it is larger than the sum of its proper divisors (657860425).

12126001420103 is an equidigital number, since it uses as much as digits as its factorization.

12126001420103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 657860424.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 12126001420103 its reverse (30102410062121), we get a palindrome (42228411482224).

The spelling of 12126001420103 in words is "twelve trillion, one hundred twenty-six billion, one million, four hundred twenty thousand, one hundred three".