1323122430 has 64 divisors (see below), whose sum is σ = 3637767168. Its totient is φ = 301708800.

The previous prime is 1323122429. The next prime is 1323122431. The reversal of 1323122430 is 342213231.

It is an interprime number because it is at equal distance from previous prime (1323122429) and next prime (1323122431).

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

It is a junction number, because it is equal to n+sod(n) for n = 1323122397 and 1323122406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1323122431) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 83655 + ... + 98205.

It is an arithmetic number, because the mean of its divisors is an integer number (56840112).

Almost surely, 2^1323122430 is an apocalyptic number.

1323122430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1323122430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1818883584).

1323122430 is an abundant number, since it is smaller than the sum of its proper divisors (2314644738).

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

1323122430 is a wasteful number, since it uses less digits than its factorization.

1323122430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15001.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 1323122430 is about 36374.7498960474. The cubic root of 1323122430 is about 1097.8255750613.

Adding to 1323122430 its reverse (342213231), we get a palindrome (1665335661).

It can be divided in two parts, 1323 and 122430, that added together give a triangular number (123753 = T₄₉₇).

The spelling of 1323122430 in words is "one billion, three hundred twenty-three million, one hundred twenty-two thousand, four hundred thirty".