223011 has 12 divisors (see below), whose sum is σ = 327600. Its totient is φ = 146160.

The previous prime is 223009. The next prime is 223019. The reversal of 223011 is 110322.

It is a happy number.

223011 is nontrivially palindromic in base 14.

It is not a de Polignac number, because 223011 - 2¹ = 223009 is a prime.

It is a super-2 number, since 2×223011² = 99467812242, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

223011 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 222984 and 223002.

It is not an unprimeable number, because it can be changed into a prime (223019) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 465 + ... + 813.

It is an arithmetic number, because the mean of its divisors is an integer number (27300).

2²²³⁰¹¹ is an apocalyptic number.

223011 is a deficient number, since it is larger than the sum of its proper divisors (104589).

223011 is a wasteful number, since it uses less digits than its factorization.

223011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 426 (or 423 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 223011 is about 472.2404048787. The cubic root of 223011 is about 60.6422670198.

Adding to 223011 its reverse (110322), we get a palindrome (333333).

The spelling of 223011 in words is "two hundred twenty-three thousand, eleven", and thus it is an iban number.