13131103203 has 6 divisors (see below), whose sum is σ = 18967149084. Its totient is φ = 8754068796.

The previous prime is 13131103201. The next prime is 13131103247. The reversal of 13131103203 is 30230113131.

It is a happy number.

13131103203 is a `hidden beast` number, since 1 + 31 + 311 + 0 + 320 + 3 = 666.

It is not a de Polignac number, because 13131103203 - 2¹ = 13131103201 is a prime.

It is a super-3 number, since 3×13131103203³ (a number of 31 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (13131103201) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 729505725 + ... + 729505742.

It is an arithmetic number, because the mean of its divisors is an integer number (3161191514).

Almost surely, 2^13131103203 is an apocalyptic number.

13131103203 is a deficient number, since it is larger than the sum of its proper divisors (5836045881).

13131103203 is a wasteful number, since it uses less digits than its factorization.

13131103203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1459011473 (or 1459011470 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

Adding to 13131103203 its reverse (30230113131), we get a palindrome (43361216334).

The spelling of 13131103203 in words is "thirteen billion, one hundred thirty-one million, one hundred three thousand, two hundred three".