11020210111111 has 2 divisors, whose sum is σ = 11020210111112. Its totient is φ = 11020210111110.

The previous prime is 11020210111093. The next prime is 11020210111117. The reversal of 11020210111111 is 11111101202011.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11020210111111 - 2¹¹ = 11020210109063 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11020210111091 and 11020210111100.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11020210111117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5510105055555 + 5510105055556.

It is an arithmetic number, because the mean of its divisors is an integer number (5510105055556).

Almost surely, 2^{11020210111111} is an apocalyptic number.

11020210111111 is a deficient number, since it is larger than the sum of its proper divisors (1).

11020210111111 is an equidigital number, since it uses as much as digits as its factorization.

11020210111111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4, while the sum is 13.

Adding to 11020210111111 its reverse (11111101202011), we get a palindrome (22131311313122).

The spelling of 11020210111111 in words is "eleven trillion, twenty billion, two hundred ten million, one hundred eleven thousand, one hundred eleven".