131121310551435 has 48 divisors (see below), whose sum is σ = 228057352889184. Its totient is φ = 69691247963136.

The previous prime is 131121310551397. The next prime is 131121310551503. The reversal of 131121310551435 is 534155013121131.

131121310551435 is a `hidden beast` number, since 1 + 3 + 1 + 1 + 2 + 1 + 3 + 105 + 514 + 35 = 666.

It is not a de Polignac number, because 131121310551435 - 2¹⁷ = 131121310420363 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 131121310551435.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1016986884 + ... + 1017115806.

It is an arithmetic number, because the mean of its divisors is an integer number (4751194851858).

Almost surely, 2^{131121310551435} is an apocalyptic number.

131121310551435 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

131121310551435 is a deficient number, since it is larger than the sum of its proper divisors (96936042337749).

131121310551435 is a wasteful number, since it uses less digits than its factorization.

131121310551435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206364 (or 206361 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 36.

Adding to 131121310551435 its reverse (534155013121131), we get a palindrome (665276323672566).

The spelling of 131121310551435 in words is "one hundred thirty-one trillion, one hundred twenty-one billion, three hundred ten million, five hundred fifty-one thousand, four hundred thirty-five".