20113033131011 has 2 divisors, whose sum is σ = 20113033131012. Its totient is φ = 20113033131010.

The previous prime is 20113033130989. The next prime is 20113033131017. The reversal of 20113033131011 is 11013133031102.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20113033131011 is a prime.

It is a super-2 number, since 2×20113033131011² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20113033131017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10056516565505 + 10056516565506.

It is an arithmetic number, because the mean of its divisors is an integer number (10056516565506).

Almost surely, 2^{20113033131011} is an apocalyptic number.

20113033131011 is a deficient number, since it is larger than the sum of its proper divisors (1).

20113033131011 is an equidigital number, since it uses as much as digits as its factorization.

20113033131011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 162, while the sum is 20.

Adding to 20113033131011 its reverse (11013133031102), we get a palindrome (31126166162113).

Subtracting from 20113033131011 its reverse (11013133031102), we obtain a palindrome (9099900099909).

The spelling of 20113033131011 in words is "twenty trillion, one hundred thirteen billion, thirty-three million, one hundred thirty-one thousand, eleven".