131312003 has 4 divisors (see below), whose sum is σ = 131709048. Its totient is φ = 130914960.

The previous prime is 131311987. The next prime is 131312011. The reversal of 131312003 is 300213131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 300213131 = 67 ⋅4480793.

It is a cyclic number.

It is not a de Polignac number, because 131312003 - 2⁴ = 131311987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131312033) 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, 198026 + ... + 198687.

It is an arithmetic number, because the mean of its divisors is an integer number (32927262).

Almost surely, 2^131312003 is an apocalyptic number.

131312003 is a deficient number, since it is larger than the sum of its proper divisors (397045).

131312003 is an equidigital number, since it uses as much as digits as its factorization.

131312003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 397044.

The product of its (nonzero) digits is 54, while the sum is 14.

The square root of 131312003 is about 11459.1449506497. The cubic root of 131312003 is about 508.2781907279.

Adding to 131312003 its reverse (300213131), we get a palindrome (431525134).

The spelling of 131312003 in words is "one hundred thirty-one million, three hundred twelve thousand, three".