1323221231001 has 16 divisors (see below), whose sum is σ = 1856173229568. Its totient is φ = 837371376000.

The previous prime is 1323221230993. The next prime is 1323221231029. The reversal of 1323221231001 is 1001321223231.

It is not a de Polignac number, because 1323221231001 - 2³ = 1323221230993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1323221211001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 145372425 + ... + 145381526.

It is an arithmetic number, because the mean of its divisors is an integer number (116010826848).

Almost surely, 2^{1323221231001} is an apocalyptic number.

It is an amenable number.

1323221231001 is a deficient number, since it is larger than the sum of its proper divisors (532951998567).

1323221231001 is a wasteful number, since it uses less digits than its factorization.

1323221231001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290754032.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 1323221231001 its reverse (1001321223231), we get a palindrome (2324542454232).

The spelling of 1323221231001 in words is "one trillion, three hundred twenty-three billion, two hundred twenty-one million, two hundred thirty-one thousand, one".