131303111 has 4 divisors (see below), whose sum is σ = 131983632. Its totient is φ = 130622592.

The previous prime is 131303093. The next prime is 131303119. The reversal of 131303111 is 111303131.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131303111 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 (131303119) 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, 339971 + ... + 340356.

It is an arithmetic number, because the mean of its divisors is an integer number (32995908).

Almost surely, 2^131303111 is an apocalyptic number.

131303111 is a deficient number, since it is larger than the sum of its proper divisors (680521).

131303111 is an equidigital number, since it uses as much as digits as its factorization.

131303111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 680520.

The product of its (nonzero) digits is 27, while the sum is 14.

The square root of 131303111 is about 11458.7569570176. The cubic root of 131303111 is about 508.2667175150.

Adding to 131303111 its reverse (111303131), we get a palindrome (242606242).

The spelling of 131303111 in words is "one hundred thirty-one million, three hundred three thousand, one hundred eleven".