131313143 has 8 divisors (see below), whose sum is σ = 141683136. Its totient is φ = 120981600.

The previous prime is 131313137. The next prime is 131313191. The reversal of 131313143 is 341313131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 131313143 - 2⁸ = 131312887 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 (131313103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2303 + ... + 16368.

It is an arithmetic number, because the mean of its divisors is an integer number (17710392).

Almost surely, 2^131313143 is an apocalyptic number.

131313143 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

131313143 is a deficient number, since it is larger than the sum of its proper divisors (10369993).

131313143 is a wasteful number, since it uses less digits than its factorization.

131313143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19225.

The product of its digits is 324, while the sum is 20.

The square root of 131313143 is about 11459.1946924729. The cubic root of 131313143 is about 508.2796616151.

Adding to 131313143 its reverse (341313131), we get a palindrome (472626274).

The spelling of 131313143 in words is "one hundred thirty-one million, three hundred thirteen thousand, one hundred forty-three".