108531121440285 has 32 divisors (see below), whose sum is σ = 193008296396160. Its totient is φ = 57864040617600.

The previous prime is 108531121440283. The next prime is 108531121440293. The reversal of 108531121440285 is 582044121135801.

108531121440285 is a `hidden beast` number, since 1 + 0 + 8 + 5 + 3 + 1 + 121 + 440 + 2 + 85 = 666.

It is not a de Polignac number, because 108531121440285 - 2¹ = 108531121440283 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 108531121440285.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108531121440283) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 133093056 + ... + 133906025.

It is an arithmetic number, because the mean of its divisors is an integer number (6031509262380).

Almost surely, 2^{108531121440285} is an apocalyptic number.

108531121440285 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

108531121440285 is a deficient number, since it is larger than the sum of its proper divisors (84477174955875).

108531121440285 is a wasteful number, since it uses less digits than its factorization.

108531121440285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267002106 (or 267002100 counting only the distinct ones).

The product of its (nonzero) digits is 307200, while the sum is 45.

The spelling of 108531121440285 in words is "one hundred eight trillion, five hundred thirty-one billion, one hundred twenty-one million, four hundred forty thousand, two hundred eighty-five".