130321012 has 24 divisors (see below), whose sum is σ = 236534760.
Its totient is φ = 62751360.
The previous prime is 130320961. The next prime is 130321033. The reversal of 130321012 is 210123031.
Adding to 130321012 its reverse (210123031), we get a palindrome (340444043).
130321012 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It can be written as a sum of positive squares in 4 ways, for example, as 39614436 + 90706576 = 6294^2 + 9524^2
It is a junction number, because it is equal to n+sod(n) for n = 130320983 and 130321001.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52258 + ... + 54694.
It is an arithmetic number, because the mean of its divisors is an integer number (9855615).
Almost surely, 2130321012 is an apocalyptic number.
It is an amenable number.
130321012 is a deficient number, since it is larger than the sum of its proper divisors (106213748).
130321012 is a wasteful number, since it uses less digits than its factorization.
130321012 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2931 (or 2929 counting only the distinct ones).
The product of its (nonzero) digits is 36, while the sum is 13.
The square root of 130321012 is about 11415.8228787942.
The cubic root of 130321012 is about 506.9963288186.
The spelling of 130321012 in words is "one hundred thirty million, three hundred twenty-one thousand, twelve".