2123443211 has 8 divisors (see below), whose sum is σ = 2239802880. Its totient is φ = 2007543528.

The previous prime is 2123443193. The next prime is 2123443219. The reversal of 2123443211 is 1123443212.

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

It is a cyclic number.

It is not a de Polignac number, because 2123443211 - 2¹⁴ = 2123426827 is a prime.

It is a super-2 number, since 2×2123443211² = 9018022140683981042, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2123443219) 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, 105491 + ... + 123996.

It is an arithmetic number, because the mean of its divisors is an integer number (279975360).

Almost surely, 2^2123443211 is an apocalyptic number.

2123443211 is a deficient number, since it is larger than the sum of its proper divisors (116359669).

2123443211 is a wasteful number, since it uses less digits than its factorization.

2123443211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229993.

The product of its digits is 1152, while the sum is 23.

The square root of 2123443211 is about 46080.8334451537. The cubic root of 2123443211 is about 1285.3267623235.

Adding to 2123443211 its reverse (1123443212), we get a palindrome (3246886423).

Subtracting from 2123443211 its reverse (1123443212), we obtain a palindrome (999999999).

The spelling of 2123443211 in words is "two billion, one hundred twenty-three million, four hundred forty-three thousand, two hundred eleven".