130531120 has 20 divisors (see below), whose sum is σ = 303485040. Its totient is φ = 52212416.

The previous prime is 130531091. The next prime is 130531127. The reversal of 130531120 is 21135031.

It is a tau number, because it is divible by the number of its divisors (20).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 130531094 and 130531103.

It is not an unprimeable number, because it can be changed into a prime (130531127) 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 3 ways as a sum of consecutive naturals, for example, 815740 + ... + 815899.

It is an arithmetic number, because the mean of its divisors is an integer number (15174252).

Almost surely, 2^130531120 is an apocalyptic number.

130531120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

130531120 is an abundant number, since it is smaller than the sum of its proper divisors (172953920).

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

130531120 is a wasteful number, since it uses less digits than its factorization.

130531120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1631652 (or 1631646 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 16.

The square root of 130531120 is about 11425.0216629992. The cubic root of 130531120 is about 507.2686481401.

Adding to 130531120 its reverse (21135031), we get a palindrome (151666151).

The spelling of 130531120 in words is "one hundred thirty million, five hundred thirty-one thousand, one hundred twenty".