205020230000003 has 4 divisors (see below), whose sum is σ = 223658432727288. Its totient is φ = 186382027272720.

The previous prime is 205020229999873. The next prime is 205020230000023. The reversal of 205020230000003 is 300000032020502.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-205020230000003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (205020230000023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9319101363626 + ... + 9319101363647.

It is an arithmetic number, because the mean of its divisors is an integer number (55914608181822).

Almost surely, 2^{205020230000003} is an apocalyptic number.

205020230000003 is a deficient number, since it is larger than the sum of its proper divisors (18638202727285).

205020230000003 is a wasteful number, since it uses less digits than its factorization.

205020230000003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18638202727284.

The product of its (nonzero) digits is 360, while the sum is 17.

Adding to 205020230000003 its reverse (300000032020502), we get a palindrome (505020262020505).

The spelling of 205020230000003 in words is "two hundred five trillion, twenty billion, two hundred thirty million, three", and thus it is an aban number.