523031143 has 2 divisors, whose sum is σ = 523031144. Its totient is φ = 523031142.

The previous prime is 523031111. The next prime is 523031161. The reversal of 523031143 is 341130325.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 523031143 - 2⁵ = 523031111 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (523038143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 261515571 + 261515572.

It is an arithmetic number, because the mean of its divisors is an integer number (261515572).

Almost surely, 2^523031143 is an apocalyptic number.

523031143 is a deficient number, since it is larger than the sum of its proper divisors (1).

523031143 is an equidigital number, since it uses as much as digits as its factorization.

523031143 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 523031143 is about 22869.8741360769. The cubic root of 523031143 is about 805.7046120420.

Adding to 523031143 its reverse (341130325), we get a palindrome (864161468).

The spelling of 523031143 in words is "five hundred twenty-three million, thirty-one thousand, one hundred forty-three".