131003404 has 24 divisors (see below), whose sum is σ = 275797760. Its totient is φ = 53189136.

The previous prime is 131003401. The next prime is 131003407. The reversal of 131003404 is 404300131.

It is an interprime number because it is at equal distance from previous prime (131003401) and next prime (131003407).

It is not an unprimeable number, because it can be changed into a prime (131003401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 122592 + ... + 123655.

Almost surely, 2^131003404 is an apocalyptic number.

131003404 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

131003404 is an abundant number, since it is smaller than the sum of its proper divisors (144794356).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131003404 is a wasteful number, since it uses less digits than its factorization.

131003404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246277 (or 246275 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 131003404 is about 11445.6718457240. The cubic root of 131003404 is about 507.8797067766.

Adding to 131003404 its reverse (404300131), we get a palindrome (535303535).

The spelling of 131003404 in words is "one hundred thirty-one million, three thousand, four hundred four".