2021330043345 has 16 divisors (see below), whose sum is σ = 3404345336640. Its totient is φ = 1021303600704.

The previous prime is 2021330043319. The next prime is 2021330043371. The reversal of 2021330043345 is 5433400331202.

It is an interprime number because it is at equal distance from previous prime (2021330043319) and next prime (2021330043371).

It is not a de Polignac number, because 2021330043345 - 2¹² = 2021330039249 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3546192774 + ... + 3546193343.

It is an arithmetic number, because the mean of its divisors is an integer number (212771583540).

Almost surely, 2^{2021330043345} is an apocalyptic number.

It is an amenable number.

2021330043345 is a deficient number, since it is larger than the sum of its proper divisors (1383015293295).

2021330043345 is a wasteful number, since it uses less digits than its factorization.

2021330043345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7092386144.

The product of its (nonzero) digits is 25920, while the sum is 30.

Adding to 2021330043345 its reverse (5433400331202), we get a palindrome (7454730374547).

The spelling of 2021330043345 in words is "two trillion, twenty-one billion, three hundred thirty million, forty-three thousand, three hundred forty-five".