1323312101 has 4 divisors (see below), whose sum is σ = 1345005804. Its totient is φ = 1301618400.

The previous prime is 1323312073. The next prime is 1323312103. The reversal of 1323312101 is 1012133231.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 231009601 + 1092302500 = 15199^2 + 33050^2 .

It is a cyclic number.

It is not a de Polignac number, because 1323312101 - 2⁶ = 1323312037 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1323312101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1323312103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10846760 + ... + 10846881.

It is an arithmetic number, because the mean of its divisors is an integer number (336251451).

Almost surely, 2^1323312101 is an apocalyptic number.

It is an amenable number.

1323312101 is a deficient number, since it is larger than the sum of its proper divisors (21693703).

1323312101 is an equidigital number, since it uses as much as digits as its factorization.

1323312101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21693702.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 1323312101 is about 36377.3569820568. The cubic root of 1323312101 is about 1097.8780307073.

Adding to 1323312101 its reverse (1012133231), we get a palindrome (2335445332).

The spelling of 1323312101 in words is "one billion, three hundred twenty-three million, three hundred twelve thousand, one hundred one".