131006343 has 16 divisors (see below), whose sum is σ = 192116736. Its totient is φ = 78902880.

The previous prime is 131006339. The next prime is 131006353. The reversal of 131006343 is 343600131.

It is not a de Polignac number, because 131006343 - 2² = 131006339 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131006333) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33903 + ... + 37568.

It is an arithmetic number, because the mean of its divisors is an integer number (12007296).

Almost surely, 2^131006343 is an apocalyptic number.

131006343 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

131006343 is a deficient number, since it is larger than the sum of its proper divisors (61110393).

131006343 is a wasteful number, since it uses less digits than its factorization.

131006343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71534.

The product of its (nonzero) digits is 648, while the sum is 21.

The square root of 131006343 is about 11445.8002341470. The cubic root of 131006343 is about 507.8835047626.

Adding to 131006343 its reverse (343600131), we get a palindrome (474606474).

The spelling of 131006343 in words is "one hundred thirty-one million, six thousand, three hundred forty-three".