2143231134431 has 2 divisors, whose sum is σ = 2143231134432. Its totient is φ = 2143231134430.

The previous prime is 2143231134419. The next prime is 2143231134439. The reversal of 2143231134431 is 1344311323412.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2143231134431 - 2²⁶ = 2143164025567 is a prime.

It is a super-2 number, since 2×2143231134431² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2143231134439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1071615567215 + 1071615567216.

It is an arithmetic number, because the mean of its divisors is an integer number (1071615567216).

Almost surely, 2^{2143231134431} is an apocalyptic number.

2143231134431 is a deficient number, since it is larger than the sum of its proper divisors (1).

2143231134431 is an equidigital number, since it uses as much as digits as its factorization.

2143231134431 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20736, while the sum is 32.

Adding to 2143231134431 its reverse (1344311323412), we get a palindrome (3487542457843).

The spelling of 2143231134431 in words is "two trillion, one hundred forty-three billion, two hundred thirty-one million, one hundred thirty-four thousand, four hundred thirty-one".