131104220 has 24 divisors (see below), whose sum is σ = 296497824. Its totient is φ = 48407616.

The previous prime is 131104201. The next prime is 131104223. The reversal of 131104220 is 22401131.

It is a junction number, because it is equal to n+sod(n) for n = 131104195 and 131104204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131104223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 251864 + ... + 252383.

It is an arithmetic number, because the mean of its divisors is an integer number (12354076).

Almost surely, 2^131104220 is an apocalyptic number.

131104220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131104220 is an abundant number, since it is smaller than the sum of its proper divisors (165393604).

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

131104220 is a wasteful number, since it uses less digits than its factorization.

131104220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 504269 (or 504267 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 131104220 is about 11450.0751089240. The cubic root of 131104220 is about 508.0099559915.

Adding to 131104220 its reverse (22401131), we get a palindrome (153505351).

The spelling of 131104220 in words is "one hundred thirty-one million, one hundred four thousand, two hundred twenty".