1210231312 has 20 divisors (see below), whose sum is σ = 2345363280. Its totient is φ = 604976288.

The previous prime is 1210231301. The next prime is 1210231331. The reversal of 1210231312 is 2131320121.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 126903 + ... + 136105.

It is an arithmetic number, because the mean of its divisors is an integer number (117268164).

Almost surely, 2^1210231312 is an apocalyptic number.

It is an amenable number.

1210231312 is a deficient number, since it is larger than the sum of its proper divisors (1135131968).

1210231312 is an equidigital number, since it uses as much as digits as its factorization.

1210231312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17430 (or 17424 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1210231312 is about 34788.3789791936. The cubic root of 1210231312 is about 1065.6701350805.

Adding to 1210231312 its reverse (2131320121), we get a palindrome (3341551433).

The spelling of 1210231312 in words is "one billion, two hundred ten million, two hundred thirty-one thousand, three hundred twelve".