131205435325 has 12 divisors (see below), whose sum is σ = 162703702368. Its totient is φ = 104958566000.

The previous prime is 131205435287. The next prime is 131205435337. The reversal of 131205435325 is 523534502131.

It is not a de Polignac number, because 131205435325 - 2¹⁷ = 131205304253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 351750 + ... + 621400.

It is an arithmetic number, because the mean of its divisors is an integer number (13558641864).

Almost surely, 2^131205435325 is an apocalyptic number.

It is an amenable number.

131205435325 is a deficient number, since it is larger than the sum of its proper divisors (31498267043).

131205435325 is a wasteful number, since it uses less digits than its factorization.

131205435325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289124 (or 289119 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 34.

Adding to 131205435325 its reverse (523534502131), we get a palindrome (654739937456).

It can be divided in two parts, 13120 and 5435325, that added together give a palindrome (5448445).

The spelling of 131205435325 in words is "one hundred thirty-one billion, two hundred five million, four hundred thirty-five thousand, three hundred twenty-five".