1320103210320 has 60 divisors (see below), whose sum is σ = 4433346617076. Its totient is φ = 352027522560.

The previous prime is 1320103210271. The next prime is 1320103210427. The reversal of 1320103210320 is 230123010231.

1320103210320 is a `hidden beast` number, since 1 + 3 + 20 + 1 + 0 + 321 + 0 + 320 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 374455877184 + 945647333136 = 611928^2 + 972444^2 .

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1320103210293 and 1320103210302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 916737621 + ... + 916739060.

Almost surely, 2^{1320103210320} is an apocalyptic number.

1320103210320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1320103210320 is an abundant number, since it is smaller than the sum of its proper divisors (3113243406756).

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

1320103210320 is a wasteful number, since it uses less digits than its factorization.

1320103210320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1833476700 (or 1833476691 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 1320103210320 its reverse (230123010231), we get a palindrome (1550226220551).

The spelling of 1320103210320 in words is "one trillion, three hundred twenty billion, one hundred three million, two hundred ten thousand, three hundred twenty".