30123120210 has 16 divisors (see below), whose sum is σ = 72295488576. Its totient is φ = 8032832048.

The previous prime is 30123120151. The next prime is 30123120241. The reversal of 30123120210 is 1202132103.

It is a super-2 number, since 2×30123120210² (a number of 22 digits) contains 22 as substring.

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 30123120210.

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 7 ways as a sum of consecutive naturals, for example, 502051974 + ... + 502052033.

It is an arithmetic number, because the mean of its divisors is an integer number (4518468036).

Almost surely, 2^30123120210 is an apocalyptic number.

30123120210 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

30123120210 is an abundant number, since it is smaller than the sum of its proper divisors (42172368366).

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

30123120210 is a wasteful number, since it uses less digits than its factorization.

30123120210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1004104017.

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

Adding to 30123120210 its reverse (1202132103), we get a palindrome (31325252313).

The spelling of 30123120210 in words is "thirty billion, one hundred twenty-three million, one hundred twenty thousand, two hundred ten".