1323130220013 has 16 divisors (see below), whose sum is σ = 2046290946560. Its totient is φ = 744789717936.

The previous prime is 1323130219991. The next prime is 1323130220057. The reversal of 1323130220013 is 3100220313231.

It is not a de Polignac number, because 1323130220013 - 2⁵ = 1323130219981 is a prime.

It is a super-2 number, since 2×1323130220013² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1323130220213) 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, 470194123 + ... + 470196936.

It is an arithmetic number, because the mean of its divisors is an integer number (127893184160).

Almost surely, 2^{1323130220013} is an apocalyptic number.

It is an amenable number.

1323130220013 is a deficient number, since it is larger than the sum of its proper divisors (723160726547).

1323130220013 is an equidigital number, since it uses as much as digits as its factorization.

1323130220013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 940391136.

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

Adding to 1323130220013 its reverse (3100220313231), we get a palindrome (4423350533244).

The spelling of 1323130220013 in words is "one trillion, three hundred twenty-three billion, one hundred thirty million, two hundred twenty thousand, thirteen".