1323213430 has 32 divisors (see below), whose sum is σ = 2969498880. Its totient is φ = 412429920.

The previous prime is 1323213413. The next prime is 1323213431. The reversal of 1323213430 is 343123231.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1323213431) 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, 858460 + ... + 859999.

It is an arithmetic number, because the mean of its divisors is an integer number (92796840).

Almost surely, 2^1323213430 is an apocalyptic number.

1323213430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1323213430 is an abundant number, since it is smaller than the sum of its proper divisors (1646285450).

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

1323213430 is a wasteful number, since it uses less digits than its factorization.

1323213430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1718484.

The product of its (nonzero) digits is 1296, while the sum is 22.

The square root of 1323213430 is about 36376.0007422476. Note that the first 3 decimals coincide. The cubic root of 1323213430 is about 1097.8507427592.

Adding to 1323213430 its reverse (343123231), we get a palindrome (1666336661).

It can be divided in two parts, 13232 and 13430, that added together give a palindrome (26662).

The spelling of 1323213430 in words is "one billion, three hundred twenty-three million, two hundred thirteen thousand, four hundred thirty".