2193668323 has 16 divisors (see below), whose sum is σ = 2772435456. Its totient is φ = 1685931840.

The previous prime is 2193668317. The next prime is 2193668329. The reversal of 2193668323 is 3238663912.

It is an interprime number because it is at equal distance from previous prime (2193668317) and next prime (2193668329).

It is a cyclic number.

It is not a de Polignac number, because 2193668323 - 2⁵ = 2193668291 is a prime.

It is a super-2 number, since 2×2193668323² = 9624361422667264658, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2193668323.

It is not an unprimeable number, because it can be changed into a prime (2193668329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 189511 + ... + 200752.

It is an arithmetic number, because the mean of its divisors is an integer number (173277216).

Almost surely, 2^2193668323 is an apocalyptic number.

2193668323 is a deficient number, since it is larger than the sum of its proper divisors (578767133).

2193668323 is a wasteful number, since it uses less digits than its factorization.

2193668323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390354.

The product of its digits is 279936, while the sum is 43.

The square root of 2193668323 is about 46836.6130607242. The cubic root of 2193668323 is about 1299.3425320422.

The spelling of 2193668323 in words is "two billion, one hundred ninety-three million, six hundred sixty-eight thousand, three hundred twenty-three".