1323320123001 has 16 divisors (see below), whose sum is σ = 1808358084288. Its totient is φ = 860269132800.

The previous prime is 1323320122981. The next prime is 1323320123011. The reversal of 1323320123001 is 1003210233231.

It is not a de Polignac number, because 1323320123001 - 2¹⁴ = 1323320106617 is a prime.

It is a super-2 number, since 2×1323320123001² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1323320123011) 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 15 ways as a sum of consecutive naturals, for example, 2418915 + ... + 2915096.

It is an arithmetic number, because the mean of its divisors is an integer number (113022380268).

Almost surely, 2^{1323320123001} is an apocalyptic number.

It is an amenable number.

1323320123001 is a deficient number, since it is larger than the sum of its proper divisors (485037961287).

1323320123001 is a wasteful number, since it uses less digits than its factorization.

1323320123001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5336072.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 1323320123001 its reverse (1003210233231), we get a palindrome (2326530356232).

The spelling of 1323320123001 in words is "one trillion, three hundred twenty-three billion, three hundred twenty million, one hundred twenty-three thousand, one".