230963718533 has 4 divisors (see below), whose sum is σ = 231469110060. Its totient is φ = 230458327008.

The previous prime is 230963718527. The next prime is 230963718599. The reversal of 230963718533 is 335817369032.

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 147235666369 + 83728052164 = 383713^2 + 289358^2 .

It is a cyclic number.

It is not a de Polignac number, because 230963718533 - 2⁸ = 230963718277 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 (230963712533) 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, 252695078 + ... + 252695991.

It is an arithmetic number, because the mean of its divisors is an integer number (57867277515).

Almost surely, 2^230963718533 is an apocalyptic number.

It is an amenable number.

230963718533 is a deficient number, since it is larger than the sum of its proper divisors (505391527).

230963718533 is an equidigital number, since it uses as much as digits as its factorization.

230963718533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505391526.

The product of its (nonzero) digits is 2449440, while the sum is 50.

The spelling of 230963718533 in words is "two hundred thirty billion, nine hundred sixty-three million, seven hundred eighteen thousand, five hundred thirty-three".