131103123203 has 4 divisors (see below), whose sum is σ = 141187978848. Its totient is φ = 121018267560.

The previous prime is 131103123199. The next prime is 131103123209. The reversal of 131103123203 is 302321301131.

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

It is a cyclic number.

It is not a de Polignac number, because 131103123203 - 2² = 131103123199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131103123209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5042427803 + ... + 5042427828.

It is an arithmetic number, because the mean of its divisors is an integer number (35296994712).

Almost surely, 2^131103123203 is an apocalyptic number.

131103123203 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

131103123203 is a deficient number, since it is larger than the sum of its proper divisors (10084855645).

131103123203 is a wasteful number, since it uses less digits than its factorization.

131103123203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10084855644.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 131103123203 its reverse (302321301131), we get a palindrome (433424424334).

It can be divided in two parts, 13110 and 3123203, that added together give a palindrome (3136313).

The spelling of 131103123203 in words is "one hundred thirty-one billion, one hundred three million, one hundred twenty-three thousand, two hundred three".