1000330021331 has 4 divisors (see below), whose sum is σ = 1000336077072. Its totient is φ = 1000323965592.

The previous prime is 1000330021319. The next prime is 1000330021333. The reversal of 1000330021331 is 1331200330001.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1000330021331 is a prime.

It is a super-2 number, since 2×1000330021331² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1000330021333) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 2772935 + ... + 3112848.

It is an arithmetic number, because the mean of its divisors is an integer number (250084019268).

Almost surely, 2^{1000330021331} is an apocalyptic number.

1000330021331 is a deficient number, since it is larger than the sum of its proper divisors (6055741).

1000330021331 is an equidigital number, since it uses as much as digits as its factorization.

1000330021331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6055740.

The product of its (nonzero) digits is 162, while the sum is 17.

Adding to 1000330021331 its reverse (1331200330001), we get a palindrome (2331530351332).

The spelling of 1000330021331 in words is "one trillion, three hundred thirty million, twenty-one thousand, three hundred thirty-one".