523431143 has 2 divisors, whose sum is σ = 523431144. Its totient is φ = 523431142.

The previous prime is 523431113. The next prime is 523431157. The reversal of 523431143 is 341134325.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-523431143 is a prime.

It is a super-2 number, since 2×523431143² = 547960322924572898, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (523431113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 261715571 + 261715572.

It is an arithmetic number, because the mean of its divisors is an integer number (261715572).

Almost surely, 2^523431143 is an apocalyptic number.

523431143 is a deficient number, since it is larger than the sum of its proper divisors (1).

523431143 is an equidigital number, since it uses as much as digits as its factorization.

523431143 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4320, while the sum is 26.

The square root of 523431143 is about 22878.6175937271. The cubic root of 523431143 is about 805.9099533660.

Adding to 523431143 its reverse (341134325), we get a palindrome (864565468).

The spelling of 523431143 in words is "five hundred twenty-three million, four hundred thirty-one thousand, one hundred forty-three".