12131103203103 has 32 divisors (see below), whose sum is σ = 16364967690240. Its totient is φ = 7992646339680.

The previous prime is 12131103203101. The next prime is 12131103203203. The reversal of 12131103203103 is 30130230113121.

It is a happy number.

It is not a de Polignac number, because 12131103203103 - 2¹ = 12131103203101 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12131103203103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12131103203101) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1057539658 + ... + 1057551128.

It is an arithmetic number, because the mean of its divisors is an integer number (511405240320).

Almost surely, 2^{12131103203103} is an apocalyptic number.

12131103203103 is a deficient number, since it is larger than the sum of its proper divisors (4233864487137).

12131103203103 is a wasteful number, since it uses less digits than its factorization.

12131103203103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18219.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 12131103203103 its reverse (30130230113121), we get a palindrome (42261333316224).

The spelling of 12131103203103 in words is "twelve trillion, one hundred thirty-one billion, one hundred three million, two hundred three thousand, one hundred three".