30120321210 has 32 divisors (see below), whose sum is σ = 82615738752. Its totient is φ = 6884644800.

The previous prime is 30120321199. The next prime is 30120321227. The reversal of 30120321210 is 1212302103.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 30120321210.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 71714841 + ... + 71715260.

It is an arithmetic number, because the mean of its divisors is an integer number (2581741836).

Almost surely, 2^30120321210 is an apocalyptic number.

30120321210 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

30120321210 is an abundant number, since it is smaller than the sum of its proper divisors (52495417542).

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

30120321210 is a wasteful number, since it uses less digits than its factorization.

30120321210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143430118.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 30120321210 its reverse (1212302103), we get a palindrome (31332623313).

The spelling of 30120321210 in words is "thirty billion, one hundred twenty million, three hundred twenty-one thousand, two hundred ten".