1323210312 has 48 divisors (see below), whose sum is σ = 3772314000. Its totient is φ = 417855456.

The previous prime is 1323210311. The next prime is 1323210313. The reversal of 1323210312 is 2130123231.

1323210312 is a `hidden beast` number, since 1 + 32 + 321 + 0 + 312 = 666.

It is an interprime number because it is at equal distance from previous prime (1323210311) and next prime (1323210313).

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

It is not an unprimeable number, because it can be changed into a prime (1323210311) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 482262 + ... + 484997.

It is an arithmetic number, because the mean of its divisors is an integer number (78589875).

Almost surely, 2^1323210312 is an apocalyptic number.

1323210312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1323210312 is an abundant number, since it is smaller than the sum of its proper divisors (2449103688).

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

1323210312 is a wasteful number, since it uses less digits than its factorization.

1323210312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 967290 (or 967283 counting only the distinct ones).

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

The square root of 1323210312 is about 36375.9578842950. The cubic root of 1323210312 is about 1097.8498804390.

Adding to 1323210312 its reverse (2130123231), we get a palindrome (3453333543).

The spelling of 1323210312 in words is "one billion, three hundred twenty-three million, two hundred ten thousand, three hundred twelve".