1230203212 has 72 divisors (see below), whose sum is σ = 2559664800. Its totient is φ = 515725056.

The previous prime is 1230203209. The next prime is 1230203291. The reversal of 1230203212 is 2123020321.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1901073 + ... + 1901719.

It is an arithmetic number, because the mean of its divisors is an integer number (35550900).

Almost surely, 2^1230203212 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 1230203212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1279832400).

1230203212 is an abundant number, since it is smaller than the sum of its proper divisors (1329461588).

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

1230203212 is a wasteful number, since it uses less digits than its factorization.

1230203212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 863 (or 854 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 1230203212 is about 35074.2528359479. The cubic root of 1230203212 is about 1071.5002717867.

Adding to 1230203212 its reverse (2123020321), we get a palindrome (3353223533).

It can be divided in two parts, 123020321 and 2, that multiplied together give a palindrome (246040642).

The spelling of 1230203212 in words is "one billion, two hundred thirty million, two hundred three thousand, two hundred twelve".