205502043113 has 8 divisors (see below), whose sum is σ = 208333632936. Its totient is φ = 202670899200.

The previous prime is 205502043079. The next prime is 205502043137. The reversal of 205502043113 is 311340205502.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 3337603984 + 202164439129 = 57772^2 + 449627^2 .

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 205502043113 - 2⁶ = 205502043049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (205502045113) 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, 876473 + ... + 1085913.

It is an arithmetic number, because the mean of its divisors is an integer number (26041704117).

Almost surely, 2^205502043113 is an apocalyptic number.

It is an amenable number.

205502043113 is a deficient number, since it is larger than the sum of its proper divisors (2831589823).

205502043113 is a wasteful number, since it uses less digits than its factorization.

205502043113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222955.

The product of its (nonzero) digits is 3600, while the sum is 26.

Adding to 205502043113 its reverse (311340205502), we get a palindrome (516842248615).

The spelling of 205502043113 in words is "two hundred five billion, five hundred two million, forty-three thousand, one hundred thirteen".