523220143 has 2 divisors, whose sum is σ = 523220144. Its totient is φ = 523220142.

The previous prime is 523220107. The next prime is 523220167. The reversal of 523220143 is 341022325.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 523220143 - 2²¹ = 521122991 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (523227143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 261610071 + 261610072.

It is an arithmetic number, because the mean of its divisors is an integer number (261610072).

Almost surely, 2^523220143 is an apocalyptic number.

523220143 is a deficient number, since it is larger than the sum of its proper divisors (1).

523220143 is an equidigital number, since it uses as much as digits as its factorization.

523220143 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 523220143 is about 22874.0058363200. The cubic root of 523220143 is about 805.8016488598.

Adding to 523220143 its reverse (341022325), we get a palindrome (864242468).

The spelling of 523220143 in words is "five hundred twenty-three million, two hundred twenty thousand, one hundred forty-three".