31240112041 has 4 divisors (see below), whose sum is σ = 31242384900. Its totient is φ = 31237839184.

The previous prime is 31240112039. The next prime is 31240112051. The reversal of 31240112041 is 14021104213.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14021104213 = 43 ⋅326072191.

It can be written as a sum of positive squares in 2 ways, for example, as 20626991641 + 10613120400 = 143621^2 + 103020^2 .

It is a cyclic number.

It is not a de Polignac number, because 31240112041 - 2¹ = 31240112039 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31240112011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1115686 + ... + 1143343.

It is an arithmetic number, because the mean of its divisors is an integer number (7810596225).

Almost surely, 2^31240112041 is an apocalyptic number.

It is an amenable number.

31240112041 is a deficient number, since it is larger than the sum of its proper divisors (2272859).

31240112041 is a wasteful number, since it uses less digits than its factorization.

31240112041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2272858.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 31240112041 its reverse (14021104213), we get a palindrome (45261216254).

The spelling of 31240112041 in words is "thirty-one billion, two hundred forty million, one hundred twelve thousand, forty-one".