2123773219 has 2 divisors, whose sum is σ = 2123773220. Its totient is φ = 2123773218.

The previous prime is 2123773199. The next prime is 2123773247. The reversal of 2123773219 is 9123773212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2123773219 - 2⁵ = 2123773187 is a prime.

It is a super-2 number, since 2×2123773219² = 9020825371483243922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2123773319) 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 as a sum of consecutive naturals, namely, 1061886609 + 1061886610.

It is an arithmetic number, because the mean of its divisors is an integer number (1061886610).

Almost surely, 2^2123773219 is an apocalyptic number.

2123773219 is a deficient number, since it is larger than the sum of its proper divisors (1).

2123773219 is an equidigital number, since it uses as much as digits as its factorization.

2123773219 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 31752, while the sum is 37.

The square root of 2123773219 is about 46084.4140572493. The cubic root of 2123773219 is about 1285.3933438298.

The spelling of 2123773219 in words is "two billion, one hundred twenty-three million, seven hundred seventy-three thousand, two hundred nineteen".