205235345423 has 8 divisors (see below), whose sum is σ = 208640025696. Its totient is φ = 201857580000.

The previous prime is 205235345411. The next prime is 205235345459. The reversal of 205235345423 is 324543532502.

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 205235345423 - 2⁸ = 205235345167 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 (205235345023) 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, 6713336 + ... + 6743837.

It is an arithmetic number, because the mean of its divisors is an integer number (26080003212).

Almost surely, 2^205235345423 is an apocalyptic number.

205235345423 is a deficient number, since it is larger than the sum of its proper divisors (3404680273).

205235345423 is a wasteful number, since it uses less digits than its factorization.

205235345423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13457425.

The product of its (nonzero) digits is 432000, while the sum is 38.

Adding to 205235345423 its reverse (324543532502), we get a palindrome (529778877925).

The spelling of 205235345423 in words is "two hundred five billion, two hundred thirty-five million, three hundred forty-five thousand, four hundred twenty-three".