523242101 has 4 divisors (see below), whose sum is σ = 523582752. Its totient is φ = 522901452.

The previous prime is 523242077. The next prime is 523242113. The reversal of 523242101 is 101242325.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 523242101 - 2¹⁰ = 523241077 is a prime.

It is a super-3 number, since 3×523242101³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (523242191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 168011 + ... + 171096.

It is an arithmetic number, because the mean of its divisors is an integer number (130895688).

Almost surely, 2^523242101 is an apocalyptic number.

It is an amenable number.

523242101 is a deficient number, since it is larger than the sum of its proper divisors (340651).

523242101 is a wasteful number, since it uses less digits than its factorization.

523242101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340650.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 523242101 is about 22874.4858084286. The cubic root of 523242101 is about 805.8129210718.

Adding to 523242101 its reverse (101242325), we get a palindrome (624484426).

The spelling of 523242101 in words is "five hundred twenty-three million, two hundred forty-two thousand, one hundred one".