1320562306252 has 72 divisors (see below), whose sum is σ = 2713347706608. Its totient is φ = 560693952000.

The previous prime is 1320562306247. The next prime is 1320562306277. The reversal of 1320562306252 is 2526032650231.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15388488 + ... + 15474064.

It is an arithmetic number, because the mean of its divisors is an integer number (37685384814).

Almost surely, 2^{1320562306252} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1320562306252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1356673853304).

1320562306252 is an abundant number, since it is smaller than the sum of its proper divisors (1392785400356).

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

1320562306252 is a wasteful number, since it uses less digits than its factorization.

1320562306252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86327 (or 86318 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 37.

Adding to 1320562306252 its reverse (2526032650231), we get a palindrome (3846594956483).

The spelling of 1320562306252 in words is "one trillion, three hundred twenty billion, five hundred sixty-two million, three hundred six thousand, two hundred fifty-two".