1323100212 has 48 divisors (see below), whose sum is σ = 3642089472. Its totient is φ = 365833440.

The previous prime is 1323100211. The next prime is 1323100237. The reversal of 1323100212 is 2120013231.

It is a junction number, because it is equal to n+sod(n) for n = 1323100191 and 1323100200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1323100211) 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, 251448 + ... + 256655.

It is an arithmetic number, because the mean of its divisors is an integer number (75876864).

Almost surely, 2^1323100212 is an apocalyptic number.

1323100212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1323100212 is an abundant number, since it is smaller than the sum of its proper divisors (2318989260).

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

1323100212 is a wasteful number, since it uses less digits than its factorization.

1323100212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 508148 (or 508146 counting only the distinct ones).

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

The square root of 1323100212 is about 36374.4444906036. Note that the first 4 decimals coincide. The cubic root of 1323100212 is about 1097.8194300957.

Adding to 1323100212 its reverse (2120013231), we get a palindrome (3443113443).

The spelling of 1323100212 in words is "one billion, three hundred twenty-three million, one hundred thousand, two hundred twelve".