1230231312 has 60 divisors (see below), whose sum is σ = 3484454064. Its totient is φ = 405132480.

The previous prime is 1230231293. The next prime is 1230231377. The reversal of 1230231312 is 2131320321.

1230231312 is a `hidden beast` number, since 123 + 0 + 231 + 312 = 666.

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, 39514 + ... + 63417.

Almost surely, 2^1230231312 is an apocalyptic number.

1230231312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1230231312 is an abundant number, since it is smaller than the sum of its proper divisors (2254222752).

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

1230231312 is a wasteful number, since it uses less digits than its factorization.

1230231312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103028 (or 103019 counting only the distinct ones).

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

The square root of 1230231312 is about 35074.6534124002. The cubic root of 1230231312 is about 1071.5084300400.

Adding to 1230231312 its reverse (2131320321), we get a palindrome (3361551633).

The spelling of 1230231312 in words is "one billion, two hundred thirty million, two hundred thirty-one thousand, three hundred twelve".