221123041003 has 16 divisors (see below), whose sum is σ = 231320358720. Its totient is φ = 210975012864.

The previous prime is 221123041001. The next prime is 221123041031. The reversal of 221123041003 is 300140321122.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 221123041003 - 2¹ = 221123041001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221123041001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15982893 + ... + 15996721.

It is an arithmetic number, because the mean of its divisors is an integer number (14457522420).

Almost surely, 2^221123041003 is an apocalyptic number.

221123041003 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

221123041003 is a deficient number, since it is larger than the sum of its proper divisors (10197317717).

221123041003 is a wasteful number, since it uses less digits than its factorization.

221123041003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15558.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 221123041003 its reverse (300140321122), we get a palindrome (521263362125).

The spelling of 221123041003 in words is "two hundred twenty-one billion, one hundred twenty-three million, forty-one thousand, three".