20224123 has 4 divisors (see below), whose sum is σ = 20555728. Its totient is φ = 19892520.

The previous prime is 20224117. The next prime is 20224129. The reversal of 20224123 is 32142202.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (20224117) and next prime (20224129).

It is a cyclic number.

It is not a de Polignac number, because 20224123 - 2⁵ = 20224091 is a prime.

It is a super-2 number, since 2×20224123² = 818030302238258, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20224097 and 20224106.

It is not an unprimeable number, because it can be changed into a prime (20224129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 165711 + ... + 165832.

It is an arithmetic number, because the mean of its divisors is an integer number (5138932).

Almost surely, 2^20224123 is an apocalyptic number.

20224123 is a deficient number, since it is larger than the sum of its proper divisors (331605).

20224123 is an equidigital number, since it uses as much as digits as its factorization.

20224123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331604.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 20224123 is about 4497.1238586457. The cubic root of 20224123 is about 272.4519366456.

Adding to 20224123 its reverse (32142202), we get a palindrome (52366325).

The spelling of 20224123 in words is "twenty million, two hundred twenty-four thousand, one hundred twenty-three".