1323220553202 has 16 divisors (see below), whose sum is σ = 2737697696640. Its totient is φ = 425864086032.

The previous prime is 1323220553201. The next prime is 1323220553243. The reversal of 1323220553202 is 2023550223231.

It is a self number, because there is not a number n which added to its sum of digits gives 1323220553202.

It is not an unprimeable number, because it can be changed into a prime (1323220553201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3802357738 + ... + 3802358085.

It is an arithmetic number, because the mean of its divisors is an integer number (171106106040).

Almost surely, 2^{1323220553202} is an apocalyptic number.

1323220553202 is an abundant number, since it is smaller than the sum of its proper divisors (1414477143438).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1323220553202 is a wasteful number, since it uses less digits than its factorization.

1323220553202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7604715857.

The product of its (nonzero) digits is 21600, while the sum is 30.

Adding to 1323220553202 its reverse (2023550223231), we get a palindrome (3346770776433).

The spelling of 1323220553202 in words is "one trillion, three hundred twenty-three billion, two hundred twenty million, five hundred fifty-three thousand, two hundred two".