131301343 has 4 divisors (see below), whose sum is σ = 138211960. Its totient is φ = 124390728.

The previous prime is 131301329. The next prime is 131301361. The reversal of 131301343 is 343103131.

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-131301343 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19), and also a Moran number because the ratio is a prime number: 6910597 = 131301343 / (1 + 3 + 1 + 3 + 0 + 1 + 3 + 4 + 3).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 131301343.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131301323) 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, 3455280 + ... + 3455317.

It is an arithmetic number, because the mean of its divisors is an integer number (34552990).

Almost surely, 2^131301343 is an apocalyptic number.

131301343 is a deficient number, since it is larger than the sum of its proper divisors (6910617).

131301343 is an equidigital number, since it uses as much as digits as its factorization.

131301343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6910616.

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 131301343 is about 11458.6798105192. The cubic root of 131301343 is about 508.2644362296.

Adding to 131301343 its reverse (343103131), we get a palindrome (474404474).

The spelling of 131301343 in words is "one hundred thirty-one million, three hundred one thousand, three hundred forty-three".