20033101 has 4 divisors (see below), whose sum is σ = 21854304. Its totient is φ = 18211900.

The previous prime is 20033093. The next prime is 20033137. The reversal of 20033101 is 10133002.

20033101 = T₁₉₀₃ + T₁₉₀₄ + ... + T₁₉₁₃.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20033101 - 2³ = 20033093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20033401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 910585 + ... + 910606.

It is an arithmetic number, because the mean of its divisors is an integer number (5463576).

Almost surely, 2^20033101 is an apocalyptic number.

It is an amenable number.

20033101 is a deficient number, since it is larger than the sum of its proper divisors (1821203).

20033101 is a wasteful number, since it uses less digits than its factorization.

20033101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1821202.

The product of its (nonzero) digits is 18, while the sum is 10.

The square root of 20033101 is about 4475.8352293175. The cubic root of 20033101 is about 271.5914290167.

Adding to 20033101 its reverse (10133002), we get a palindrome (30166103).

Subtracting from 20033101 its reverse (10133002), we obtain a palindrome (9900099).

The spelling of 20033101 in words is "twenty million, thirty-three thousand, one hundred one".