1230331212 has 36 divisors (see below), whose sum is σ = 3392732616. Its totient is φ = 372827520.

The previous prime is 1230331183. The next prime is 1230331229. The reversal of 1230331212 is 2121330321.

1230331212 is a `hidden beast` number, since 123 + 0 + 331 + 212 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1553053 + ... + 1553844.

Almost surely, 2^1230331212 is an apocalyptic number.

1230331212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1230331212 is an abundant number, since it is smaller than the sum of its proper divisors (2162401404).

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

1230331212 is a wasteful number, since it uses less digits than its factorization.

1230331212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3106918 (or 3106913 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 1230331212 is about 35076.0774887957. The cubic root of 1230331212 is about 1071.5374329312.

Adding to 1230331212 its reverse (2121330321), we get a palindrome (3351661533).

The spelling of 1230331212 in words is "one billion, two hundred thirty million, three hundred thirty-one thousand, two hundred twelve".