1323001320213 has 16 divisors (see below), whose sum is σ = 1870872863616. Its totient is φ = 829822635840.

The previous prime is 1323001320161. The next prime is 1323001320247. The reversal of 1323001320213 is 3120231003231.

It is not a de Polignac number, because 1323001320213 - 2¹⁸ = 1323001058069 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1323001320213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1323001320283) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 157159170 + ... + 157167587.

It is an arithmetic number, because the mean of its divisors is an integer number (116929553976).

Almost surely, 2^{1323001320213} is an apocalyptic number.

It is an amenable number.

1323001320213 is a deficient number, since it is larger than the sum of its proper divisors (547871543403).

1323001320213 is a wasteful number, since it uses less digits than its factorization.

1323001320213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314326844.

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

Adding to 1323001320213 its reverse (3120231003231), we get a palindrome (4443232323444).

The spelling of 1323001320213 in words is "one trillion, three hundred twenty-three billion, one million, three hundred twenty thousand, two hundred thirteen".