131404303 has 4 divisors (see below), whose sum is σ = 134609328. Its totient is φ = 128199280.

The previous prime is 131404283. The next prime is 131404321. The reversal of 131404303 is 303404131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 303404131 = 16699 ⋅18169.

It is a cyclic number.

It is not a de Polignac number, because 131404303 - 2¹⁷ = 131273231 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 (131404363) 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, 1602451 + ... + 1602532.

It is an arithmetic number, because the mean of its divisors is an integer number (33652332).

Almost surely, 2^131404303 is an apocalyptic number.

131404303 is a deficient number, since it is larger than the sum of its proper divisors (3205025).

131404303 is an equidigital number, since it uses as much as digits as its factorization.

131404303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3205024.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 131404303 is about 11463.1715942840. The cubic root of 131404303 is about 508.3972534390.

Adding to 131404303 its reverse (303404131), we get a palindrome (434808434).

The spelling of 131404303 in words is "one hundred thirty-one million, four hundred four thousand, three hundred three".