131138323 has 16 divisors (see below), whose sum is σ = 150124320. Its totient is φ = 113757696.

The previous prime is 131138321. The next prime is 131138351. The reversal of 131138323 is 323831131.

It is a cyclic number.

It is not a de Polignac number, because 131138323 - 2¹ = 131138321 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131138321) 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, 6465 + ... + 17437.

It is an arithmetic number, because the mean of its divisors is an integer number (9382770).

Almost surely, 2^131138323 is an apocalyptic number.

131138323 is a deficient number, since it is larger than the sum of its proper divisors (18985997).

131138323 is a wasteful number, since it uses less digits than its factorization.

131138323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11046.

The product of its digits is 1296, while the sum is 25.

The square root of 131138323 is about 11451.5642162981. The cubic root of 131138323 is about 508.0540002426.

Adding to 131138323 its reverse (323831131), we get a palindrome (454969454).

The spelling of 131138323 in words is "one hundred thirty-one million, one hundred thirty-eight thousand, three hundred twenty-three".