131143101 has 4 divisors (see below), whose sum is σ = 174857472. Its totient is φ = 87428732.

The previous prime is 131143093. The next prime is 131143123. The reversal of 131143101 is 101341131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 131143101 - 2³ = 131143093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131143141) 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, 21857181 + ... + 21857186.

It is an arithmetic number, because the mean of its divisors is an integer number (43714368).

Almost surely, 2^131143101 is an apocalyptic number.

It is an amenable number.

131143101 is a deficient number, since it is larger than the sum of its proper divisors (43714371).

131143101 is an equidigital number, since it uses as much as digits as its factorization.

131143101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43714370.

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 131143101 is about 11451.7728321863. The cubic root of 131143101 is about 508.0601704515.

Adding to 131143101 its reverse (101341131), we get a palindrome (232484232).

The spelling of 131143101 in words is "one hundred thirty-one million, one hundred forty-three thousand, one hundred one".