20011120033 has 4 divisors (see below), whose sum is σ = 20011493268. Its totient is φ = 20010746800.

The previous prime is 20011120021. The next prime is 20011120039. The reversal of 20011120033 is 33002111002.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6729249024 + 13281871009 = 82032^2 + 115247^2 .

It is a cyclic number.

It is not a de Polignac number, because 20011120033 - 2¹⁷ = 20010988961 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20011119995 and 20011120022.

It is not an unprimeable number, because it can be changed into a prime (20011120039) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89266 + ... + 219067.

It is an arithmetic number, because the mean of its divisors is an integer number (5002873317).

Almost surely, 2^20011120033 is an apocalyptic number.

It is an amenable number.

20011120033 is a deficient number, since it is larger than the sum of its proper divisors (373235).

20011120033 is an equidigital number, since it uses as much as digits as its factorization.

20011120033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373234.

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

Adding to 20011120033 its reverse (33002111002), we get a palindrome (53013231035).

The spelling of 20011120033 in words is "twenty billion, eleven million, one hundred twenty thousand, thirty-three".