1323210252 has 48 divisors (see below), whose sum is σ = 3799991552. Its totient is φ = 348978240.

The previous prime is 1323210247. The next prime is 1323210311. The reversal of 1323210252 is 2520123231.

1323210252 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 604774 + ... + 606957.

Almost surely, 2^1323210252 is an apocalyptic number.

1323210252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1323210252 is an abundant number, since it is smaller than the sum of its proper divisors (2476781300).

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

1323210252 is a wasteful number, since it uses less digits than its factorization.

1323210252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1211758 (or 1211756 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 1323210252 is about 36375.9570595744. The cubic root of 1323210252 is about 1097.8498638452.

Adding to 1323210252 its reverse (2520123231), we get a palindrome (3843333483).

It can be divided in two parts, 1323 and 210252, that added together give a triangular number (211575 = T₆₅₀).

The spelling of 1323210252 in words is "one billion, three hundred twenty-three million, two hundred ten thousand, two hundred fifty-two".