2531123142143 has 2 divisors, whose sum is σ = 2531123142144. Its totient is φ = 2531123142142.

The previous prime is 2531123142133. The next prime is 2531123142151. The reversal of 2531123142143 is 3412413211352.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2531123142143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2531123142133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1265561571071 + 1265561571072.

It is an arithmetic number, because the mean of its divisors is an integer number (1265561571072).

Almost surely, 2^{2531123142143} is an apocalyptic number.

2531123142143 is a deficient number, since it is larger than the sum of its proper divisors (1).

2531123142143 is an equidigital number, since it uses as much as digits as its factorization.

2531123142143 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17280, while the sum is 32.

Adding to 2531123142143 its reverse (3412413211352), we get a palindrome (5943536353495).

The spelling of 2531123142143 in words is "two trillion, five hundred thirty-one billion, one hundred twenty-three million, one hundred forty-two thousand, one hundred forty-three".