2000993021 has 2 divisors, whose sum is σ = 2000993022. Its totient is φ = 2000993020.

The previous prime is 2000992997. The next prime is 2000993047. The reversal of 2000993021 is 1203990002.

It is an a-pointer prime, because the next prime (2000993047) can be obtained adding 2000993021 to its sum of digits (26).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1999341796 + 1651225 = 44714^2 + 1285^2 .

It is a cyclic number.

It is not a de Polignac number, because 2000993021 - 2³⁰ = 927251197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2000993521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1000496510 + 1000496511.

It is an arithmetic number, because the mean of its divisors is an integer number (1000496511).

Almost surely, 2^2000993021 is an apocalyptic number.

It is an amenable number.

2000993021 is a deficient number, since it is larger than the sum of its proper divisors (1).

2000993021 is an equidigital number, since it uses as much as digits as its factorization.

2000993021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 972, while the sum is 26.

The square root of 2000993021 is about 44732.4604845296. The cubic root of 2000993021 is about 1260.1295367369.

The spelling of 2000993021 in words is "two billion, nine hundred ninety-three thousand, twenty-one".