20103221133 has 12 divisors (see below), whose sum is σ = 29042406588. Its totient is φ = 13400107200.

The previous prime is 20103221113. The next prime is 20103221141. The reversal of 20103221133 is 33112230102.

It can be written as a sum of positive squares in 2 ways, for example, as 7631245449 + 12471975684 = 87357^2 + 111678^2 .

It is not a de Polignac number, because 20103221133 - 2⁵ = 20103221101 is a prime.

20103221133 is a modest number, since divided by 221133 gives 20103 as remainder.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20103221113) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 106360 + ... + 226977.

It is an arithmetic number, because the mean of its divisors is an integer number (2420200549).

Almost surely, 2^20103221133 is an apocalyptic number.

It is an amenable number.

20103221133 is a deficient number, since it is larger than the sum of its proper divisors (8939185455).

20103221133 is a wasteful number, since it uses less digits than its factorization.

20103221133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340044 (or 340041 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 20103221133 its reverse (33112230102), we get a palindrome (53215451235).

The spelling of 20103221133 in words is "twenty billion, one hundred three million, two hundred twenty-one thousand, one hundred thirty-three".