223020105 has 64 divisors (see below), whose sum is σ = 446957568. Its totient is φ = 92252160.

The previous prime is 223020097. The next prime is 223020143. The reversal of 223020105 is 501020322.

It is not a de Polignac number, because 223020105 - 2³ = 223020097 is a prime.

It is a super-2 number, since 2×223020105² = 99475934468422050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 407442 + ... + 407988.

It is an arithmetic number, because the mean of its divisors is an integer number (6983712).

Almost surely, 2^223020105 is an apocalyptic number.

It is an amenable number.

223020105 is an abundant number, since it is smaller than the sum of its proper divisors (223937463).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

223020105 is a wasteful number, since it uses less digits than its factorization.

223020105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 926.

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 223020105 is about 14933.8576730863. The cubic root of 223020105 is about 606.4309230097.

Adding to 223020105 its reverse (501020322), we get a palindrome (724040427).

The spelling of 223020105 in words is "two hundred twenty-three million, twenty thousand, one hundred five".