131178342390 has 16 divisors (see below), whose sum is σ = 314828021808. Its totient is φ = 34980891296.

The previous prime is 131178342353. The next prime is 131178342391. The reversal of 131178342390 is 93243871131.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131178342391) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 2186305677 + ... + 2186305736.

It is an arithmetic number, because the mean of its divisors is an integer number (19676751363).

Almost surely, 2^131178342390 is an apocalyptic number.

131178342390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131178342390 is an abundant number, since it is smaller than the sum of its proper divisors (183649679418).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131178342390 is a wasteful number, since it uses less digits than its factorization.

131178342390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4372611423.

The product of its (nonzero) digits is 108864, while the sum is 42.

The spelling of 131178342390 in words is "one hundred thirty-one billion, one hundred seventy-eight million, three hundred forty-two thousand, three hundred ninety".