232300000021 has 4 divisors (see below), whose sum is σ = 232468212844. Its totient is φ = 232131787200.

The previous prime is 232300000003. The next prime is 232300000027. The reversal of 232300000021 is 120000003232.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 81279159025 + 151020840996 = 285095^2 + 388614^2 .

It is a cyclic number.

It is not a de Polignac number, because 232300000021 - 2⁵ = 232299999989 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 232299999947 and 232300000010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (232300000027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84104340 + ... + 84107101.

It is an arithmetic number, because the mean of its divisors is an integer number (58117053211).

Almost surely, 2^232300000021 is an apocalyptic number.

It is an amenable number.

232300000021 is a deficient number, since it is larger than the sum of its proper divisors (168212823).

232300000021 is a wasteful number, since it uses less digits than its factorization.

232300000021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168212822.

The product of its (nonzero) digits is 72, while the sum is 13.

Adding to 232300000021 its reverse (120000003232), we get a palindrome (352300003253).

The spelling of 232300000021 in words is "two hundred thirty-two billion, three hundred million, twenty-one", and thus it is an aban number.