131240256143 has 2 divisors, whose sum is σ = 131240256144. Its totient is φ = 131240256142.

The previous prime is 131240256073. The next prime is 131240256179. The reversal of 131240256143 is 341652042131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 131240256143 - 2²⁸ = 130971820687 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131240256193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65620128071 + 65620128072.

It is an arithmetic number, because the mean of its divisors is an integer number (65620128072).

Almost surely, 2^131240256143 is an apocalyptic number.

131240256143 is a deficient number, since it is larger than the sum of its proper divisors (1).

131240256143 is an equidigital number, since it uses as much as digits as its factorization.

131240256143 is an evil number, because the sum of its binary digits is even.

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

Adding to 131240256143 its reverse (341652042131), we get a palindrome (472892298274).

The spelling of 131240256143 in words is "one hundred thirty-one billion, two hundred forty million, two hundred fifty-six thousand, one hundred forty-three".