205151323525141 has 4 divisors (see below), whose sum is σ = 234458655457312. Its totient is φ = 175843991592972.

The previous prime is 205151323525139. The next prime is 205151323525153. The reversal of 205151323525141 is 141525323151502.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 205151323525141 - 2¹ = 205151323525139 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 205151323525094 and 205151323525103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205151323523141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14653665966075 + ... + 14653665966088.

It is an arithmetic number, because the mean of its divisors is an integer number (58614663864328).

Almost surely, 2^{205151323525141} is an apocalyptic number.

It is an amenable number.

205151323525141 is a deficient number, since it is larger than the sum of its proper divisors (29307331932171).

205151323525141 is an equidigital number, since it uses as much as digits as its factorization.

205151323525141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29307331932170.

The product of its (nonzero) digits is 180000, while the sum is 40.

Adding to 205151323525141 its reverse (141525323151502), we get a palindrome (346676646676643).

The spelling of 205151323525141 in words is "two hundred five trillion, one hundred fifty-one billion, three hundred twenty-three million, five hundred twenty-five thousand, one hundred forty-one".