20111201120033 has 2 divisors, whose sum is σ = 20111201120034. Its totient is φ = 20111201120032.

The previous prime is 20111201120027. The next prime is 20111201120107. The reversal of 20111201120033 is 33002110211102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10277006173729 + 9834194946304 = 3205777^2 + 3135952^2 .

It is a cyclic number.

It is not a de Polignac number, because 20111201120033 - 2¹⁸ = 20111200857889 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20111201119993 and 20111201120020.

It is not a weakly prime, because it can be changed into another prime (20111201126033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10055600560016 + 10055600560017.

It is an arithmetic number, because the mean of its divisors is an integer number (10055600560017).

Almost surely, 2^{20111201120033} is an apocalyptic number.

It is an amenable number.

20111201120033 is a deficient number, since it is larger than the sum of its proper divisors (1).

20111201120033 is an equidigital number, since it uses as much as digits as its factorization.

20111201120033 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 20111201120033 its reverse (33002110211102), we get a palindrome (53113311331135).

The spelling of 20111201120033 in words is "twenty trillion, one hundred eleven billion, two hundred one million, one hundred twenty thousand, thirty-three".