30123220000 has 120 divisors (see below), whose sum is σ = 75833238096. Its totient is φ = 11768736000.

The previous prime is 30123219979. The next prime is 30123220013. The reversal of 30123220000 is 2232103.

It is a happy number.

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 19 ways as a sum of consecutive naturals, for example, 842487 + ... + 877513.

Almost surely, 2^30123220000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30123220000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37916619048).

30123220000 is an abundant number, since it is smaller than the sum of its proper divisors (45710018096).

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

30123220000 is an equidigital number, since it uses as much as digits as its factorization.

30123220000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35100 (or 35077 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 13.

Adding to 30123220000 its reverse (2232103), we get a palindrome (30125452103).

The spelling of 30123220000 in words is "thirty billion, one hundred twenty-three million, two hundred twenty thousand".