1320320525502 has 16 divisors (see below), whose sum is σ = 2880699328512. Its totient is φ = 400097128920.

The previous prime is 1320320525501. The next prime is 1320320525521. The reversal of 1320320525502 is 2055250230231.

It is a self number, because there is not a number n which added to its sum of digits gives 1320320525502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1320320525501) 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, 10002428158 + ... + 10002428289.

It is an arithmetic number, because the mean of its divisors is an integer number (180043708032).

Almost surely, 2^{1320320525502} is an apocalyptic number.

1320320525502 is an abundant number, since it is smaller than the sum of its proper divisors (1560378803010).

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

1320320525502 is a wasteful number, since it uses less digits than its factorization.

1320320525502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20004856463.

The product of its (nonzero) digits is 18000, while the sum is 30.

Adding to 1320320525502 its reverse (2055250230231), we get a palindrome (3375570755733).

The spelling of 1320320525502 in words is "one trillion, three hundred twenty billion, three hundred twenty million, five hundred twenty-five thousand, five hundred two".