205240325631235 has 4 divisors (see below), whose sum is σ = 246288390757488. Its totient is φ = 164192260504984.

The previous prime is 205240325631193. The next prime is 205240325631259. The reversal of 205240325631235 is 532136523042502.

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

It is a cyclic number.

It is not a de Polignac number, because 205240325631235 - 2¹⁵ = 205240325598467 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 205240325631191 and 205240325631200.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20524032563119 + ... + 20524032563128.

It is an arithmetic number, because the mean of its divisors is an integer number (61572097689372).

Almost surely, 2^{205240325631235} is an apocalyptic number.

205240325631235 is a deficient number, since it is larger than the sum of its proper divisors (41048065126253).

205240325631235 is an equidigital number, since it uses as much as digits as its factorization.

205240325631235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41048065126252.

The product of its (nonzero) digits is 1296000, while the sum is 43.

Adding to 205240325631235 its reverse (532136523042502), we get a palindrome (737376848673737).

The spelling of 205240325631235 in words is "two hundred five trillion, two hundred forty billion, three hundred twenty-five million, six hundred thirty-one thousand, two hundred thirty-five".