1320121330300 has 144 divisors (see below), whose sum is σ = 3059283880800. Its totient is φ = 492721315840.

The previous prime is 1320121330267. The next prime is 1320121330391. The reversal of 1320121330300 is 30331210231.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 142603272 + ... + 142612528.

It is an arithmetic number, because the mean of its divisors is an integer number (21245026950).

Almost surely, 2^{1320121330300} is an apocalyptic number.

1320121330300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1320121330300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1529641940400).

1320121330300 is an abundant number, since it is smaller than the sum of its proper divisors (1739162550500).

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

1320121330300 is a wasteful number, since it uses less digits than its factorization.

1320121330300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10000 (or 9993 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 1320121330300 its reverse (30331210231), we get a palindrome (1350452540531).

The spelling of 1320121330300 in words is "one trillion, three hundred twenty billion, one hundred twenty-one million, three hundred thirty thousand, three hundred".