205102340141 has 8 divisors (see below), whose sum is σ = 211964175864. Its totient is φ = 198329044480.

The previous prime is 205102340117. The next prime is 205102340153. The reversal of 205102340141 is 141043201502.

It can be written as a sum of positive squares in 4 ways, for example, as 22388837641 + 182713502500 = 149629^2 + 427450^2 .

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 205102340141 - 2⁶ = 205102340077 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 (205102340161) 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, 22130306 + ... + 22139571.

It is an arithmetic number, because the mean of its divisors is an integer number (26495521983).

Almost surely, 2^205102340141 is an apocalyptic number.

It is an amenable number.

205102340141 is a deficient number, since it is larger than the sum of its proper divisors (6861835723).

205102340141 is a wasteful number, since it uses less digits than its factorization.

205102340141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44270031.

The product of its (nonzero) digits is 960, while the sum is 23.

Adding to 205102340141 its reverse (141043201502), we get a palindrome (346145541643).

The spelling of 205102340141 in words is "two hundred five billion, one hundred two million, three hundred forty thousand, one hundred forty-one".