232520230240021 has 4 divisors (see below), whose sum is σ = 242629805467872. Its totient is φ = 222410655012172.

The previous prime is 232520230239949. The next prime is 232520230240099. The reversal of 232520230240021 is 120042032025232.

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 232520230240021 - 2¹¹ = 232520230237973 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (232520230240621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5054787613891 + ... + 5054787613936.

It is an arithmetic number, because the mean of its divisors is an integer number (60657451366968).

Almost surely, 2^{232520230240021} is an apocalyptic number.

It is an amenable number.

232520230240021 is a deficient number, since it is larger than the sum of its proper divisors (10109575227851).

232520230240021 is a wasteful number, since it uses less digits than its factorization.

232520230240021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10109575227850.

The product of its (nonzero) digits is 11520, while the sum is 28.

Adding to 232520230240021 its reverse (120042032025232), we get a palindrome (352562262265253).

The spelling of 232520230240021 in words is "two hundred thirty-two trillion, five hundred twenty billion, two hundred thirty million, two hundred forty thousand, twenty-one".