131130302220 has 60 divisors (see below), whose sum is σ = 411360619824. Its totient is φ = 34968080160.

The previous prime is 131130302167. The next prime is 131130302243. The reversal of 131130302220 is 22203031131.

131130302220 is a `hidden beast` number, since 1 + 311 + 30 + 302 + 2 + 20 = 666.

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 131130302193 and 131130302202.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 40470696 + ... + 40473935.

Almost surely, 2^131130302220 is an apocalyptic number.

131130302220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131130302220 is an abundant number, since it is smaller than the sum of its proper divisors (280230317604).

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

131130302220 is a wasteful number, since it uses less digits than its factorization.

131130302220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80944652 (or 80944641 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 131130302220 its reverse (22203031131), we get a palindrome (153333333351).

The spelling of 131130302220 in words is "one hundred thirty-one billion, one hundred thirty million, three hundred two thousand, two hundred twenty".