1320121021300 has 36 divisors (see below), whose sum is σ = 2876075669376. Its totient is φ = 525944620000.

The previous prime is 1320121021279. The next prime is 1320121021313. The reversal of 1320121021300 is 31201210231.

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, 26272132 + ... + 26322331.

It is an arithmetic number, because the mean of its divisors is an integer number (79890990816).

Almost surely, 2^{1320121021300} is an apocalyptic number.

1320121021300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1320121021300 is an abundant number, since it is smaller than the sum of its proper divisors (1555954648076).

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

1320121021300 is a wasteful number, since it uses less digits than its factorization.

1320121021300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52594728 (or 52594721 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 1320121021300 its reverse (31201210231), we get a palindrome (1351322231531).

The spelling of 1320121021300 in words is "one trillion, three hundred twenty billion, one hundred twenty-one million, twenty-one thousand, three hundred".