21223203103023 has 32 divisors (see below), whose sum is σ = 30253924968960. Its totient is φ = 13201709875200.

The previous prime is 21223203102967. The next prime is 21223203103049. The reversal of 21223203103023 is 32030130232212.

It is not a de Polignac number, because 21223203103023 - 2¹⁰ = 21223203101999 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21223203102984 and 21223203103002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21223203105023) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2369278 + ... + 6932523.

It is an arithmetic number, because the mean of its divisors is an integer number (945435155280).

Almost surely, 2^{21223203103023} is an apocalyptic number.

21223203103023 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

21223203103023 is a deficient number, since it is larger than the sum of its proper divisors (9030721865937).

21223203103023 is a wasteful number, since it uses less digits than its factorization.

21223203103023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9302639.

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 21223203103023 its reverse (32030130232212), we get a palindrome (53253333335235).

The spelling of 21223203103023 in words is "twenty-one trillion, two hundred twenty-three billion, two hundred three million, one hundred three thousand, twenty-three".