131000103 has 12 divisors (see below), whose sum is σ = 203778120. Its totient is φ = 80615376.

The previous prime is 131000087. The next prime is 131000161. The reversal of 131000103 is 301000131.

It is not a de Polignac number, because 131000103 - 2⁴ = 131000087 is a prime.

It is a super-2 number, since 2×131000103² = 34322053972021218, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131002103) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 559713 + ... + 559946.

It is an arithmetic number, because the mean of its divisors is an integer number (16981510).

Almost surely, 2^131000103 is an apocalyptic number.

131000103 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

131000103 is a deficient number, since it is larger than the sum of its proper divisors (72778017).

131000103 is a wasteful number, since it uses less digits than its factorization.

131000103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1119678 (or 1119675 counting only the distinct ones).

The product of its (nonzero) digits is 9, while the sum is 9.

The square root of 131000103 is about 11445.5276418346. The cubic root of 131000103 is about 507.8754409205.

Adding to 131000103 its reverse (301000131), we get a palindrome (432000234).

The spelling of 131000103 in words is "one hundred thirty-one million, one hundred three", and thus it is an aban number.