1021320331300 has 18 divisors (see below), whose sum is σ = 2216265119138. Its totient is φ = 408528132480.

The previous prime is 1021320331279. The next prime is 1021320331301. The reversal of 1021320331300 is 31330231201.

1021320331300 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 10366497856 + 1010953833444 = 101816^2 + 1005462^2 .

It is not an unprimeable number, because it can be changed into a prime (1021320331301) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5106601557 + ... + 5106601756.

Almost surely, 2^{1021320331300} is an apocalyptic number.

1021320331300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1021320331300 is an abundant number, since it is smaller than the sum of its proper divisors (1194944787838).

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

1021320331300 is a wasteful number, since it uses less digits than its factorization.

1021320331300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10213203327 (or 10213203320 counting only the distinct ones).

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

Adding to 1021320331300 its reverse (31330231201), we get a palindrome (1052650562501).

The spelling of 1021320331300 in words is "one trillion, twenty-one billion, three hundred twenty million, three hundred thirty-one thousand, three hundred".