2100201100993 has 4 divisors (see below), whose sum is σ = 2100205191168. Its totient is φ = 2100197010820.

The previous prime is 2100201100973. The next prime is 2100201100997. The reversal of 2100201100993 is 3990011020012.

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 a de Polignac number, because none of the positive numbers 2^k-2100201100993 is a prime.

It is a super-2 number, since 2×2100201100993² (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 (2100201100997) 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, 1141921 + ... + 2346142.

It is an arithmetic number, because the mean of its divisors is an integer number (525051297792).

Almost surely, 2^{2100201100993} is an apocalyptic number.

It is an amenable number.

2100201100993 is a deficient number, since it is larger than the sum of its proper divisors (4090175).

2100201100993 is an equidigital number, since it uses as much as digits as its factorization.

2100201100993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4090174.

The product of its (nonzero) digits is 972, while the sum is 28.

The spelling of 2100201100993 in words is "two trillion, one hundred billion, two hundred one million, one hundred thousand, nine hundred ninety-three".