23003100223021 has 4 divisors (see below), whose sum is σ = 23624805634492. Its totient is φ = 22381394811552.

The previous prime is 23003100222967. The next prime is 23003100223069. The reversal of 23003100223021 is 12032200130032.

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 20804955950025 + 2198144272996 = 4561245^2 + 1482614^2 .

It is a cyclic number.

It is not a de Polignac number, because 23003100223021 - 2²¹ = 23003098125869 is a prime.

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 23003100223021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23003100223091) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 310852705680 + ... + 310852705753.

It is an arithmetic number, because the mean of its divisors is an integer number (5906201408623).

Almost surely, 2^{23003100223021} is an apocalyptic number.

It is an amenable number.

23003100223021 is a deficient number, since it is larger than the sum of its proper divisors (621705411471).

23003100223021 is an equidigital number, since it uses as much as digits as its factorization.

23003100223021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 621705411470.

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

Adding to 23003100223021 its reverse (12032200130032), we get a palindrome (35035300353053).

The spelling of 23003100223021 in words is "twenty-three trillion, three billion, one hundred million, two hundred twenty-three thousand, twenty-one".