1021133331320 has 32 divisors (see below), whose sum is σ = 2297628691920. Its totient is φ = 408439342080.

The previous prime is 1021133331293. The next prime is 1021133331331. The reversal of 1021133331320 is 231333311201.

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 7 ways as a sum of consecutive naturals, for example, 787559 + ... + 1631721.

Almost surely, 2^{1021133331320} is an apocalyptic number.

1021133331320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1021133331320 is an abundant number, since it is smaller than the sum of its proper divisors (1276495360600).

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

1021133331320 is a wasteful number, since it uses less digits than its factorization.

1021133331320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 874415 (or 874411 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 1021133331320 its reverse (231333311201), we get a palindrome (1252466642521).

The spelling of 1021133331320 in words is "one trillion, twenty-one billion, one hundred thirty-three million, three hundred thirty-one thousand, three hundred twenty".