131240303 has 4 divisors (see below), whose sum is σ = 134441328. Its totient is φ = 128039280.

The previous prime is 131240299. The next prime is 131240371. The reversal of 131240303 is 303042131.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 131240303 - 2² = 131240299 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 (131240393) 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, 1600451 + ... + 1600532.

It is an arithmetic number, because the mean of its divisors is an integer number (33610332).

Almost surely, 2^131240303 is an apocalyptic number.

131240303 is a deficient number, since it is larger than the sum of its proper divisors (3201025).

131240303 is an equidigital number, since it uses as much as digits as its factorization.

131240303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3201024.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 131240303 is about 11456.0160177961. The cubic root of 131240303 is about 508.1856625494.

Adding to 131240303 its reverse (303042131), we get a palindrome (434282434).

The spelling of 131240303 in words is "one hundred thirty-one million, two hundred forty thousand, three hundred three".