1320211032120 has 48 divisors (see below), whose sum is σ = 4290685855560. Its totient is φ = 352056275136.

The previous prime is 1320211032073. The next prime is 1320211032169. The reversal of 1320211032120 is 212301120231.

1320211032120 is a `hidden beast` number, since 1 + 320 + 2 + 1 + 1 + 0 + 321 + 20 = 666.

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 = 1320211032093 and 1320211032102.

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 in 11 ways as a sum of consecutive naturals, for example, 1833626074 + ... + 1833626793.

Almost surely, 2^{1320211032120} is an apocalyptic number.

1320211032120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1320211032120 is an abundant number, since it is smaller than the sum of its proper divisors (2970474823440).

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

1320211032120 is a wasteful number, since it uses less digits than its factorization.

1320211032120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3667252884 (or 3667252877 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 1320211032120 its reverse (212301120231), we get a palindrome (1532512152351).

The spelling of 1320211032120 in words is "one trillion, three hundred twenty billion, two hundred eleven million, thirty-two thousand, one hundred twenty".