31244131143 has 12 divisors (see below), whose sum is σ = 46179956680. Its totient is φ = 20345015376.

The previous prime is 31244131141. The next prime is 31244131147. The reversal of 31244131143 is 34113144213.

It is not a de Polignac number, because 31244131143 - 2¹ = 31244131141 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 (31244131141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40366708 + ... + 40367481.

Almost surely, 2^31244131143 is an apocalyptic number.

31244131143 is a deficient number, since it is larger than the sum of its proper divisors (14935825537).

31244131143 is a wasteful number, since it uses less digits than its factorization.

31244131143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80734238 (or 80734235 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

Adding to 31244131143 its reverse (34113144213), we get a palindrome (65357275356).

The spelling of 31244131143 in words is "thirty-one billion, two hundred forty-four million, one hundred thirty-one thousand, one hundred forty-three".