12403044645126 has 64 divisors (see below), whose sum is σ = 26521573003200. Its totient is φ = 3853221912576.

The previous prime is 12403044645119. The next prime is 12403044645127. The reversal of 12403044645126 is 62154644030421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12403044645127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18945630 + ... + 19589358.

It is an arithmetic number, because the mean of its divisors is an integer number (414399578175).

Almost surely, 2^{12403044645126} is an apocalyptic number.

12403044645126 is an abundant number, since it is smaller than the sum of its proper divisors (14118528358074).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12403044645126 is a wasteful number, since it uses less digits than its factorization.

12403044645126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 645593.

The product of its (nonzero) digits is 552960, while the sum is 42.

Adding to 12403044645126 its reverse (62154644030421), we get a palindrome (74557688675547).

The spelling of 12403044645126 in words is "twelve trillion, four hundred three billion, forty-four million, six hundred forty-five thousand, one hundred twenty-six".