131502103 has 4 divisors (see below), whose sum is σ = 131706000. Its totient is φ = 131298208.

The previous prime is 131502079. The next prime is 131502121. The reversal of 131502103 is 301205131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 301205131 = 2003 ⋅150377.

It is a cyclic number.

It is not a de Polignac number, because 131502103 - 2⁵ = 131502071 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131508103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100978 + ... + 102271.

It is an arithmetic number, because the mean of its divisors is an integer number (32926500).

Almost surely, 2^131502103 is an apocalyptic number.

131502103 is a deficient number, since it is larger than the sum of its proper divisors (203897).

131502103 is an equidigital number, since it uses as much as digits as its factorization.

131502103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203896.

The product of its (nonzero) digits is 90, while the sum is 16.

The square root of 131502103 is about 11467.4366359706. The cubic root of 131502103 is about 508.5233500737.

Adding to 131502103 its reverse (301205131), we get a palindrome (432707234).

The spelling of 131502103 in words is "one hundred thirty-one million, five hundred two thousand, one hundred three".