20112011101103 has 2 divisors, whose sum is σ = 20112011101104. Its totient is φ = 20112011101102.

The previous prime is 20112011101099. The next prime is 20112011101111. The reversal of 20112011101103 is 30110111021102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20112011101103 - 2² = 20112011101099 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20112011101123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10056005550551 + 10056005550552.

It is an arithmetic number, because the mean of its divisors is an integer number (10056005550552).

Almost surely, 2^{20112011101103} is an apocalyptic number.

20112011101103 is a deficient number, since it is larger than the sum of its proper divisors (1).

20112011101103 is an equidigital number, since it uses as much as digits as its factorization.

20112011101103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12, while the sum is 14.

Adding to 20112011101103 its reverse (30110111021102), we get a palindrome (50222122122205).

The spelling of 20112011101103 in words is "twenty trillion, one hundred twelve billion, eleven million, one hundred one thousand, one hundred three".