230505214421 has 4 divisors (see below), whose sum is σ = 233662820172. Its totient is φ = 227347608672.

The previous prime is 230505214397. The next prime is 230505214447. The reversal of 230505214421 is 124412505032.

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 200354712100 + 30150502321 = 447610^2 + 173639^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-230505214421 is a prime.

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 (230505214321) 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, 1578802766 + ... + 1578802911.

It is an arithmetic number, because the mean of its divisors is an integer number (58415705043).

Almost surely, 2^230505214421 is an apocalyptic number.

It is an amenable number.

230505214421 is a deficient number, since it is larger than the sum of its proper divisors (3157605751).

230505214421 is an equidigital number, since it uses as much as digits as its factorization.

230505214421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3157605750.

The product of its (nonzero) digits is 9600, while the sum is 29.

Adding to 230505214421 its reverse (124412505032), we get a palindrome (354917719453).

The spelling of 230505214421 in words is "two hundred thirty billion, five hundred five million, two hundred fourteen thousand, four hundred twenty-one".