2101200993 has 20 divisors (see below), whose sum is σ = 3140066160. Its totient is φ = 1400249592.

The previous prime is 2101200991. The next prime is 2101201009. The reversal of 2101200993 is 3990021012.

It is not a de Polignac number, because 2101200993 - 2¹ = 2101200991 is a prime.

It is a super-2 number, since 2×2101200993² = 8830091225968372098, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (2101200991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 385038 + ... + 390456.

It is an arithmetic number, because the mean of its divisors is an integer number (157003308).

Almost surely, 2^2101200993 is an apocalyptic number.

It is an amenable number.

2101200993 is a deficient number, since it is larger than the sum of its proper divisors (1038865167).

2101200993 is an equidigital number, since it uses as much as digits as its factorization.

2101200993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10218 (or 10209 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 27.

The square root of 2101200993 is about 45838.8589844904. The cubic root of 2101200993 is about 1280.8232401490.

The spelling of 2101200993 in words is "two billion, one hundred one million, two hundred thousand, nine hundred ninety-three".