2217920323 has 2 divisors, whose sum is σ = 2217920324. Its totient is φ = 2217920322.

The previous prime is 2217920303. The next prime is 2217920329. The reversal of 2217920323 is 3230297122.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2217920323 - 2⁹ = 2217919811 is a prime.

It is not a weakly prime, because it can be changed into another prime (2217920329) 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 as a sum of consecutive naturals, namely, 1108960161 + 1108960162.

It is an arithmetic number, because the mean of its divisors is an integer number (1108960162).

Almost surely, 2^2217920323 is an apocalyptic number.

2217920323 is a deficient number, since it is larger than the sum of its proper divisors (1).

2217920323 is an equidigital number, since it uses as much as digits as its factorization.

2217920323 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 2217920323 is about 47094.8014434714. The cubic root of 2217920323 is about 1304.1132681275.

The spelling of 2217920323 in words is "two billion, two hundred seventeen million, nine hundred twenty thousand, three hundred twenty-three".