230439813543 has 32 divisors (see below), whose sum is σ = 354028440000. Its totient is φ = 147966206976.

The previous prime is 230439813523. The next prime is 230439813581. The reversal of 230439813543 is 345318934032.

230439813543 is a `hidden beast` number, since 2 + 3 + 0 + 4 + 3 + 98 + 13 + 543 = 666.

It is not a de Polignac number, because 230439813543 - 2⁵ = 230439813511 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230439813523) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 39538 + ... + 680031.

It is an arithmetic number, because the mean of its divisors is an integer number (11063388750).

Almost surely, 2^230439813543 is an apocalyptic number.

230439813543 is a deficient number, since it is larger than the sum of its proper divisors (123588626457).

230439813543 is a wasteful number, since it uses less digits than its factorization.

230439813543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 720016 (or 720010 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 45.

The spelling of 230439813543 in words is "two hundred thirty billion, four hundred thirty-nine million, eight hundred thirteen thousand, five hundred forty-three".