1000013223 has 16 divisors (see below), whose sum is σ = 1455543936. Its totient is φ = 605660640.

The previous prime is 1000013213. The next prime is 1000013237. The reversal of 1000013223 is 3223100001.

It is a happy number.

It is not a de Polignac number, because 1000013223 - 2⁴ = 1000013207 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1000013199 and 1000013208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000013213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43836 + ... + 62622.

It is an arithmetic number, because the mean of its divisors is an integer number (90971496).

Almost surely, 2^1000013223 is an apocalyptic number.

1000013223 is a deficient number, since it is larger than the sum of its proper divisors (455530713).

1000013223 is a wasteful number, since it uses less digits than its factorization.

1000013223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20414.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 1000013223 is about 31622.9856749802. The cubic root of 1000013223 is about 1000.0044076472.

Adding to 1000013223 its reverse (3223100001), we get a palindrome (4223113224).

It can be divided in two parts, 100001 and 3223, that multiplied together give a palindrome (322303223).

The spelling of 1000013223 in words is "one billion, thirteen thousand, two hundred twenty-three".