1323610321 has 8 divisors (see below), whose sum is σ = 1445407488. Its totient is φ = 1202058000.

The previous prime is 1323610303. The next prime is 1323610349. The reversal of 1323610321 is 1230163231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1323610321 - 2⁵ = 1323610289 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1323610292 and 1323610301.

It is not an unprimeable number, because it can be changed into a prime (1323614321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49810 + ... + 71611.

It is an arithmetic number, because the mean of its divisors is an integer number (180675936).

Almost surely, 2^1323610321 is an apocalyptic number.

1323610321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1323610321 is a deficient number, since it is larger than the sum of its proper divisors (121797167).

1323610321 is a wasteful number, since it uses less digits than its factorization.

1323610321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122423.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 1323610321 is about 36381.4557295334. The cubic root of 1323610321 is about 1097.9604966638.

Adding to 1323610321 its reverse (1230163231), we get a palindrome (2553773552).

The spelling of 1323610321 in words is "one billion, three hundred twenty-three million, six hundred ten thousand, three hundred twenty-one".