530243230135621 has 4 divisors (see below), whose sum is σ = 530247292716672. Its totient is φ = 530239167554572.

The previous prime is 530243230135589. The next prime is 530243230135631. The reversal of 530243230135621 is 126531032342035.

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 530243230135621 - 2⁵ = 530243230135589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (530243230135631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2031094741 + ... + 2031355786.

It is an arithmetic number, because the mean of its divisors is an integer number (132561823179168).

Almost surely, 2^{530243230135621} is an apocalyptic number.

It is an amenable number.

530243230135621 is a deficient number, since it is larger than the sum of its proper divisors (4062581051).

530243230135621 is a wasteful number, since it uses less digits than its factorization.

530243230135621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4062581050.

The product of its (nonzero) digits is 388800, while the sum is 40.

Adding to 530243230135621 its reverse (126531032342035), we get a palindrome (656774262477656).

The spelling of 530243230135621 in words is "five hundred thirty trillion, two hundred forty-three billion, two hundred thirty million, one hundred thirty-five thousand, six hundred twenty-one".