2020211993 has 4 divisors (see below), whose sum is σ = 2126538960. Its totient is φ = 1913885028.

The previous prime is 2020211957. The next prime is 2020212011. The reversal of 2020211993 is 3991120202.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2020211993 - 2³⁰ = 946470169 is a prime.

It is a super-2 number, since 2×2020211993² = 8162512993322064098, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2020261993) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53163455 + ... + 53163492.

It is an arithmetic number, because the mean of its divisors is an integer number (531634740).

Almost surely, 2^2020211993 is an apocalyptic number.

It is an amenable number.

2020211993 is a deficient number, since it is larger than the sum of its proper divisors (106326967).

2020211993 is a wasteful number, since it uses less digits than its factorization.

2020211993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106326966.

The product of its (nonzero) digits is 1944, while the sum is 29.

The square root of 2020211993 is about 44946.7684377865. The cubic root of 2020211993 is about 1264.1510847366.

The spelling of 2020211993 in words is "two billion, twenty million, two hundred eleven thousand, nine hundred ninety-three".