220410923 has 2 divisors, whose sum is σ = 220410924. Its totient is φ = 220410922.

The previous prime is 220410917. The next prime is 220410947. The reversal of 220410923 is 329014022.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 220410923 - 2⁸ = 220410667 is a prime.

It is a super-3 number, since 3×220410923³ (a number of 26 digits) contains 333 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (220400923) 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, 110205461 + 110205462.

It is an arithmetic number, because the mean of its divisors is an integer number (110205462).

Almost surely, 2^220410923 is an apocalyptic number.

220410923 is a deficient number, since it is larger than the sum of its proper divisors (1).

220410923 is an equidigital number, since it uses as much as digits as its factorization.

220410923 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 220410923 is about 14846.2427233290. The cubic root of 220410923 is about 604.0566981481.

Adding to 220410923 its reverse (329014022), we get a palindrome (549424945).

The spelling of 220410923 in words is "two hundred twenty million, four hundred ten thousand, nine hundred twenty-three".