131142043 has 2 divisors, whose sum is σ = 131142044. Its totient is φ = 131142042.

The previous prime is 131142019. The next prime is 131142103. The reversal of 131142043 is 340241131.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131142043 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 131142043.

It is not a weakly prime, because it can be changed into another prime (131142943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65571021 + 65571022.

It is an arithmetic number, because the mean of its divisors is an integer number (65571022).

Almost surely, 2^131142043 is an apocalyptic number.

131142043 is a deficient number, since it is larger than the sum of its proper divisors (1).

131142043 is an equidigital number, since it uses as much as digits as its factorization.

131142043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 131142043 is about 11451.7266383720. The cubic root of 131142043 is about 508.0588041854.

Adding to 131142043 its reverse (340241131), we get a palindrome (471383174).

The spelling of 131142043 in words is "one hundred thirty-one million, one hundred forty-two thousand, forty-three".