13131011203203 has 16 divisors (see below), whose sum is σ = 17558809931520. Its totient is φ = 8728638402336.

The previous prime is 13131011203187. The next prime is 13131011203207. The reversal of 13131011203203 is 30230211013131.

It is a happy number.

It is not a de Polignac number, because 13131011203203 - 2⁴ = 13131011203187 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13131011203203.

It is not an unprimeable number, because it can be changed into a prime (13131011203207) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1705000 + ... + 5400837.

It is an arithmetic number, because the mean of its divisors is an integer number (1097425620720).

Almost surely, 2^{13131011203203} is an apocalyptic number.

13131011203203 is a deficient number, since it is larger than the sum of its proper divisors (4427798728317).

13131011203203 is a wasteful number, since it uses less digits than its factorization.

13131011203203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7107626.

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

Adding to 13131011203203 its reverse (30230211013131), we get a palindrome (43361222216334).

The spelling of 13131011203203 in words is "thirteen trillion, one hundred thirty-one billion, eleven million, two hundred three thousand, two hundred three".