220424311 has 2 divisors, whose sum is σ = 220424312. Its totient is φ = 220424310.

The previous prime is 220424251. The next prime is 220424327. The reversal of 220424311 is 113424022.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 220424311 - 2⁹ = 220423799 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220422311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110212155 + 110212156.

It is an arithmetic number, because the mean of its divisors is an integer number (110212156).

Almost surely, 2^220424311 is an apocalyptic number.

220424311 is a deficient number, since it is larger than the sum of its proper divisors (1).

220424311 is an equidigital number, since it uses as much as digits as its factorization.

220424311 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 220424311 is about 14846.6936049748. The cubic root of 220424311 is about 604.0689282549.

Adding to 220424311 its reverse (113424022), we get a palindrome (333848333).

The spelling of 220424311 in words is "two hundred twenty million, four hundred twenty-four thousand, three hundred eleven".