1320400300120 has 64 divisors (see below), whose sum is σ = 3247350458400. Its totient is φ = 479202170880.

The previous prime is 1320400300111. The next prime is 1320400300171. The reversal of 1320400300120 is 210030040231.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1320400300094 and 1320400300103.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 2723889 + ... + 3171808.

Almost surely, 2^{1320400300120} is an apocalyptic number.

1320400300120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1320400300120 is an abundant number, since it is smaller than the sum of its proper divisors (1926950158280).

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

1320400300120 is a wasteful number, since it uses less digits than its factorization.

1320400300120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5896228 (or 5896224 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 1320400300120 its reverse (210030040231), we get a palindrome (1530430340351).

The spelling of 1320400300120 in words is "one trillion, three hundred twenty billion, four hundred million, three hundred thousand, one hundred twenty".