131021144140243 has 16 divisors (see below), whose sum is σ = 155592357007360. Its totient is φ = 107961390756000.

The previous prime is 131021144140199. The next prime is 131021144140247. The reversal of 131021144140243 is 342041441120131.

It is a cyclic number.

It is not a de Polignac number, because 131021144140243 - 2⁹ = 131021144139731 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is not an unprimeable number, because it can be changed into a prime (131021144140247) 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, 1999252248 + ... + 1999317781.

It is an arithmetic number, because the mean of its divisors is an integer number (9724522312960).

Almost surely, 2^{131021144140243} is an apocalyptic number.

131021144140243 is a deficient number, since it is larger than the sum of its proper divisors (24571212867117).

131021144140243 is a wasteful number, since it uses less digits than its factorization.

131021144140243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3998570218.

The product of its (nonzero) digits is 9216, while the sum is 31.

Adding to 131021144140243 its reverse (342041441120131), we get a palindrome (473062585260374).

The spelling of 131021144140243 in words is "one hundred thirty-one trillion, twenty-one billion, one hundred forty-four million, one hundred forty thousand, two hundred forty-three".