211223023 has 8 divisors (see below), whose sum is σ = 230732496. Its totient is φ = 191764800.

The previous prime is 211222997. The next prime is 211223039. The reversal of 211223023 is 320322112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 211223023 - 2⁹ = 211222511 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 211222988 and 211223006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211223063) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3918 + ... + 20923.

It is an arithmetic number, because the mean of its divisors is an integer number (28841562).

Almost surely, 2^211223023 is an apocalyptic number.

211223023 is a deficient number, since it is larger than the sum of its proper divisors (19509473).

211223023 is a wasteful number, since it uses less digits than its factorization.

211223023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25625.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 211223023 is about 14533.5137871060. The cubic root of 211223023 is about 595.5438597704.

Adding to 211223023 its reverse (320322112), we get a palindrome (531545135).

The spelling of 211223023 in words is "two hundred eleven million, two hundred twenty-three thousand, twenty-three".