1323212130 has 48 divisors (see below), whose sum is σ = 3533342904. Its totient is φ = 343319040.

The previous prime is 1323212129. The next prime is 1323212131. The reversal of 1323212130 is 312123231.

1323212130 is a `hidden beast` number, since 1 + 323 + 212 + 130 = 666.

It is an interprime number because it is at equal distance from previous prime (1323212129) and next prime (1323212131).

It can be written as a sum of positive squares in 4 ways, for example, as 905949801 + 417262329 = 30099^2 + 20427^2 .

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 (1323212131) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 195351 + ... + 202010.

Almost surely, 2^1323212130 is an apocalyptic number.

1323212130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1323212130 is an abundant number, since it is smaller than the sum of its proper divisors (2210130774).

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

1323212130 is a wasteful number, since it uses less digits than its factorization.

1323212130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397411 (or 397408 counting only the distinct ones).

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

The square root of 1323212130 is about 36375.9828733190. The cubic root of 1323212130 is about 1097.8503832288.

Adding to 1323212130 its reverse (312123231), we get a palindrome (1635335361).

The spelling of 1323212130 in words is "one billion, three hundred twenty-three million, two hundred twelve thousand, one hundred thirty".