1320530220052 has 6 divisors (see below), whose sum is σ = 2310927885098. Its totient is φ = 660265110024.

The previous prime is 1320530220049. The next prime is 1320530220133. The reversal of 1320530220052 is 2500220350231.

It can be written as a sum of positive squares in only one way, i.e., 1252890694276 + 67639525776 = 1119326^2 + 260076^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1320530219999 and 1320530220026.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165066277503 + ... + 165066277510.

Almost surely, 2^{1320530220052} is an apocalyptic number.

It is an amenable number.

1320530220052 is a deficient number, since it is larger than the sum of its proper divisors (990397665046).

1320530220052 is a wasteful number, since it uses less digits than its factorization.

1320530220052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330132555017 (or 330132555015 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

Adding to 1320530220052 its reverse (2500220350231), we get a palindrome (3820750570283).

The spelling of 1320530220052 in words is "one trillion, three hundred twenty billion, five hundred thirty million, two hundred twenty thousand, fifty-two".