223023103021 has 4 divisors (see below), whose sum is σ = 229050754492. Its totient is φ = 216995451552.

The previous prime is 223023102997. The next prime is 223023103031. The reversal of 223023103021 is 120301320322.

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

It can be written as a sum of positive squares in 2 ways, for example, as 215783475625 + 7239627396 = 464525^2 + 85086^2 .

It is a cyclic number.

It is not a de Polignac number, because 223023103021 - 2⁹ = 223023102509 is a prime.

It is a super-2 number, since 2×223023103021² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 223023103021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223023103031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3013825680 + ... + 3013825753.

It is an arithmetic number, because the mean of its divisors is an integer number (57262688623).

Almost surely, 2^223023103021 is an apocalyptic number.

It is an amenable number.

223023103021 is a deficient number, since it is larger than the sum of its proper divisors (6027651471).

223023103021 is an equidigital number, since it uses as much as digits as its factorization.

223023103021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6027651470.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 223023103021 its reverse (120301320322), we get a palindrome (343324423343).

The spelling of 223023103021 in words is "two hundred twenty-three billion, twenty-three million, one hundred three thousand, twenty-one".