20103303133 has 4 divisors (see below), whose sum is σ = 20104373628. Its totient is φ = 20102232640.

The previous prime is 20103303127. The next prime is 20103303137. The reversal of 20103303133 is 33130330102.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 33130330102 = 2 ⋅16565165051.

It can be written as a sum of positive squares in 2 ways, for example, as 18746264889 + 1357038244 = 136917^2 + 36838^2 .

It is a cyclic number.

It is not a de Polignac number, because 20103303133 - 2²¹ = 20101205981 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 20103303133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20103303137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 506566 + ... + 544807.

It is an arithmetic number, because the mean of its divisors is an integer number (5026093407).

Almost surely, 2^20103303133 is an apocalyptic number.

It is an amenable number.

20103303133 is a deficient number, since it is larger than the sum of its proper divisors (1070495).

20103303133 is a wasteful number, since it uses less digits than its factorization.

20103303133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1070494.

The product of its (nonzero) digits is 486, while the sum is 19.

Adding to 20103303133 its reverse (33130330102), we get a palindrome (53233633235).

The spelling of 20103303133 in words is "twenty billion, one hundred three million, three hundred three thousand, one hundred thirty-three".