205523531323 has 8 divisors (see below), whose sum is σ = 231439988736. Its totient is φ = 180812490600.

The previous prime is 205523531231. The next prime is 205523531327. The reversal of 205523531323 is 323135325502.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 205523531323 - 2⁹ = 205523530811 is a prime.

It is not an unprimeable number, because it can be changed into a prime (205523531327) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 301353811 + ... + 301354492.

It is an arithmetic number, because the mean of its divisors is an integer number (28929998592).

Almost surely, 2^205523531323 is an apocalyptic number.

205523531323 is a deficient number, since it is larger than the sum of its proper divisors (25916457413).

205523531323 is a wasteful number, since it uses less digits than its factorization.

205523531323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 602708345.

The product of its (nonzero) digits is 81000, while the sum is 34.

Adding to 205523531323 its reverse (323135325502), we get a palindrome (528658856825).

The spelling of 205523531323 in words is "two hundred five billion, five hundred twenty-three million, five hundred thirty-one thousand, three hundred twenty-three".