1230203211 has 16 divisors (see below), whose sum is σ = 1680201600. Its totient is φ = 800210880.

The previous prime is 1230203209. The next prime is 1230203291. The reversal of 1230203211 is 1123020321.

It is not a de Polignac number, because 1230203211 - 2¹ = 1230203209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1230203201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 130776 + ... + 139866.

It is an arithmetic number, because the mean of its divisors is an integer number (105012600).

Almost surely, 2^1230203211 is an apocalyptic number.

1230203211 is a deficient number, since it is larger than the sum of its proper divisors (449998389).

1230203211 is a wasteful number, since it uses less digits than its factorization.

1230203211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10186.

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

The square root of 1230203211 is about 35074.2528216924. The cubic root of 1230203211 is about 1071.5002714963.

Adding to 1230203211 its reverse (1123020321), we get a palindrome (2353223532).

The spelling of 1230203211 in words is "one billion, two hundred thirty million, two hundred three thousand, two hundred eleven".