523311133 has 2 divisors, whose sum is σ = 523311134. Its totient is φ = 523311132.

The previous prime is 523311127. The next prime is 523311137. The reversal of 523311133 is 331113325.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 417262329 + 106048804 = 20427^2 + 10298^2 .

It is a cyclic number.

It is not a de Polignac number, because 523311133 - 2⁹ = 523310621 is a prime.

It is a super-3 number, since 3×523311133³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (523311137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 261655566 + 261655567.

It is an arithmetic number, because the mean of its divisors is an integer number (261655567).

Almost surely, 2^523311133 is an apocalyptic number.

It is an amenable number.

523311133 is a deficient number, since it is larger than the sum of its proper divisors (1).

523311133 is an equidigital number, since it uses as much as digits as its factorization.

523311133 is an evil number, because the sum of its binary digits is even.

The product of its digits is 810, while the sum is 22.

The square root of 523311133 is about 22875.9946887562. The cubic root of 523311133 is about 805.8483568234.

Adding to 523311133 its reverse (331113325), we get a palindrome (854424458).

The spelling of 523311133 in words is "five hundred twenty-three million, three hundred eleven thousand, one hundred thirty-three".