205023531433 has 8 divisors (see below), whose sum is σ = 235607153600. Its totient is φ = 174763545840.

The previous prime is 205023531413. The next prime is 205023531443. The reversal of 205023531433 is 334135320502.

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 205023531433 - 2¹³ = 205023523241 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 205023531395 and 205023531404.

It is not an unprimeable number, because it can be changed into a prime (205023531413) 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, 80907783 + ... + 80910316.

It is an arithmetic number, because the mean of its divisors is an integer number (29450894200).

Almost surely, 2^205023531433 is an apocalyptic number.

It is an amenable number.

205023531433 is a deficient number, since it is larger than the sum of its proper divisors (30583622167).

205023531433 is a wasteful number, since it uses less digits than its factorization.

205023531433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161818287.

The product of its (nonzero) digits is 32400, while the sum is 31.

Adding to 205023531433 its reverse (334135320502), we get a palindrome (539158851935).

The spelling of 205023531433 in words is "two hundred five billion, twenty-three million, five hundred thirty-one thousand, four hundred thirty-three".