1230213120 has 104 divisors (see below), whose sum is σ = 3936398016. Its totient is φ = 328040448.

The previous prime is 1230213079. The next prime is 1230213137. The reversal of 1230213120 is 213120321.

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 1230213120.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51429 + ... + 71451.

Almost surely, 2^1230213120 is an apocalyptic number.

1230213120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1230213120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1968199008).

1230213120 is an abundant number, since it is smaller than the sum of its proper divisors (2706184896).

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

1230213120 is an equidigital number, since it uses as much as digits as its factorization.

1230213120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20055 (or 20033 counting only the distinct ones).

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

The square root of 1230213120 is about 35074.3940788718. The cubic root of 1230213120 is about 1071.5031483835.

Adding to 1230213120 its reverse (213120321), we get a palindrome (1443333441).

The spelling of 1230213120 in words is "one billion, two hundred thirty million, two hundred thirteen thousand, one hundred twenty".