205268843023 has 16 divisors (see below), whose sum is σ = 217783209600. Its totient is φ = 192926391840.

The previous prime is 205268842967. The next prime is 205268843033. The reversal of 205268843023 is 320348862502.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-205268843023 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 (205268843033) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10874968 + ... + 10893826.

It is an arithmetic number, because the mean of its divisors is an integer number (13611450600).

Almost surely, 2^205268843023 is an apocalyptic number.

205268843023 is a deficient number, since it is larger than the sum of its proper divisors (12514366577).

205268843023 is a wasteful number, since it uses less digits than its factorization.

205268843023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23382.

The product of its (nonzero) digits is 552960, while the sum is 43.

The spelling of 205268843023 in words is "two hundred five billion, two hundred sixty-eight million, eight hundred forty-three thousand, twenty-three".