20110002133 has 4 divisors (see below), whose sum is σ = 21656925388. Its totient is φ = 18563078880.

The previous prime is 20110002109. The next prime is 20110002149. The reversal of 20110002133 is 33120001102.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 33120001102 = 2 ⋅16560000551.

It can be written as a sum of positive squares in 2 ways, for example, as 860659569 + 19249342564 = 29337^2 + 138742^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20110002133 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13), and also a Moran number because the ratio is a prime number: 1546923241 = 20110002133 / (2 + 0 + 1 + 1 + 0 + 0 + 0 + 2 + 1 + 3 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20110002163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 773461608 + ... + 773461633.

It is an arithmetic number, because the mean of its divisors is an integer number (5414231347).

Almost surely, 2^20110002133 is an apocalyptic number.

It is an amenable number.

20110002133 is a deficient number, since it is larger than the sum of its proper divisors (1546923255).

20110002133 is a wasteful number, since it uses less digits than its factorization.

20110002133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1546923254.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 20110002133 its reverse (33120001102), we get a palindrome (53230003235).

The spelling of 20110002133 in words is "twenty billion, one hundred ten million, two thousand, one hundred thirty-three".