1323012120001 has 96 divisors (see below), whose sum is σ = 1740088417536. Its totient is φ = 989514240000.

The previous prime is 1323012119987. The next prime is 1323012120029. The reversal of 1323012120001 is 1000212103231.

It is not a de Polignac number, because 1323012120001 - 2⁵ = 1323012119969 is a prime.

It is a super-2 number, since 2×1323012120001² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1323012120601) 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 95 ways as a sum of consecutive naturals, for example, 95995731 + ... + 96009511.

It is an arithmetic number, because the mean of its divisors is an integer number (18125921016).

Almost surely, 2^{1323012120001} is an apocalyptic number.

1323012120001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1323012120001 is a deficient number, since it is larger than the sum of its proper divisors (417076297535).

1323012120001 is a wasteful number, since it uses less digits than its factorization.

1323012120001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13963 (or 13946 counting only the distinct ones).

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

Adding to 1323012120001 its reverse (1000212103231), we get a palindrome (2323224223232).

The spelling of 1323012120001 in words is "one trillion, three hundred twenty-three billion, twelve million, one hundred twenty thousand, one".