131312041 has 4 divisors (see below), whose sum is σ = 150070912. Its totient is φ = 112553172.

The previous prime is 131312033. The next prime is 131312047. The reversal of 131312041 is 140213131.

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, and also an emirpimes, since its reverse is a distinct semiprime: 140213131 = 109 ⋅1286359.

It is a cyclic number.

It is not a de Polignac number, because 131312041 - 2³ = 131312033 is a prime.

It is a super-2 number, since 2×131312041² = 34485704223171362, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131312047) 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, 9379425 + ... + 9379438.

It is an arithmetic number, because the mean of its divisors is an integer number (37517728).

Almost surely, 2^131312041 is an apocalyptic number.

It is an amenable number.

131312041 is a deficient number, since it is larger than the sum of its proper divisors (18758871).

131312041 is an equidigital number, since it uses as much as digits as its factorization.

131312041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18758870.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 131312041 is about 11459.1466087139. The cubic root of 131312041 is about 508.2782397576.

Adding to 131312041 its reverse (140213131), we get a palindrome (271525172).

The spelling of 131312041 in words is "one hundred thirty-one million, three hundred twelve thousand, forty-one".