2123773211 has 8 divisors (see below), whose sum is σ = 2510865120. Its totient is φ = 1757605248.

The previous prime is 2123773199. The next prime is 2123773219. The reversal of 2123773211 is 1123773212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2123773211 - 2¹⁰ = 2123772187 is a prime.

It is a super-2 number, since 2×2123773211² = 9020825303522501042, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2123773219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5230766 + ... + 5231171.

It is an arithmetic number, because the mean of its divisors is an integer number (313858140).

Almost surely, 2^2123773211 is an apocalyptic number.

2123773211 is a deficient number, since it is larger than the sum of its proper divisors (387091909).

2123773211 is a wasteful number, since it uses less digits than its factorization.

2123773211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10461973.

The product of its digits is 3528, while the sum is 29.

The square root of 2123773211 is about 46084.4139704521. The cubic root of 2123773211 is about 1285.3933422158.

Subtracting from 2123773211 its reverse (1123773212), we obtain a palindrome (999999999).

The spelling of 2123773211 in words is "two billion, one hundred twenty-three million, seven hundred seventy-three thousand, two hundred eleven".