1323012102001 has 4 divisors (see below), whose sum is σ = 1327720330404. Its totient is φ = 1318303873600.

The previous prime is 1323012101989. The next prime is 1323012102011. The reversal of 1323012102001 is 1002012103231.

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 439139480976 + 883872621025 = 662676^2 + 940145^2 .

It is a cyclic number.

It is not a de Polignac number, because 1323012102001 - 2¹⁵ = 1323012069233 is a prime.

It is a super-2 number, since 2×1323012102001² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1323012102011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2354113780 + ... + 2354114341.

It is an arithmetic number, because the mean of its divisors is an integer number (331930082601).

Almost surely, 2^{1323012102001} is an apocalyptic number.

It is an amenable number.

1323012102001 is a deficient number, since it is larger than the sum of its proper divisors (4708228403).

1323012102001 is an equidigital number, since it uses as much as digits as its factorization.

1323012102001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4708228402.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 1323012102001 its reverse (1002012103231), we get a palindrome (2325024205232).

The spelling of 1323012102001 in words is "one trillion, three hundred twenty-three billion, twelve million, one hundred two thousand, one".