230005437821 has 16 divisors (see below), whose sum is σ = 252660695040. Its totient is φ = 208406887920.

The previous prime is 230005437757. The next prime is 230005437841. The reversal of 230005437821 is 128734500032.

It is not a de Polignac number, because 230005437821 - 2⁶ = 230005437757 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 (230005437841) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7283456 + ... + 7314966.

It is an arithmetic number, because the mean of its divisors is an integer number (15791293440).

Almost surely, 2^230005437821 is an apocalyptic number.

It is an amenable number.

230005437821 is a deficient number, since it is larger than the sum of its proper divisors (22655257219).

230005437821 is a wasteful number, since it uses less digits than its factorization.

230005437821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48256.

The product of its (nonzero) digits is 40320, while the sum is 35.

Adding to 230005437821 its reverse (128734500032), we get a palindrome (358739937853).

The spelling of 230005437821 in words is "two hundred thirty billion, five million, four hundred thirty-seven thousand, eight hundred twenty-one".