11100010121111 has 2 divisors, whose sum is σ = 11100010121112. Its totient is φ = 11100010121110.

The previous prime is 11100010121089. The next prime is 11100010121113. The reversal of 11100010121111 is 11112101000111.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11100010121111 - 2¹⁴ = 11100010104727 is a prime.

Together with 11100010121113, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 11100010121092 and 11100010121101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11100010121113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5550005060555 + 5550005060556.

It is an arithmetic number, because the mean of its divisors is an integer number (5550005060556).

Almost surely, 2^{11100010121111} is an apocalyptic number.

11100010121111 is a deficient number, since it is larger than the sum of its proper divisors (1).

11100010121111 is an equidigital number, since it uses as much as digits as its factorization.

11100010121111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2, while the sum is 11.

Adding to 11100010121111 its reverse (11112101000111), we get a palindrome (22212111121222).

The spelling of 11100010121111 in words is "eleven trillion, one hundred billion, ten million, one hundred twenty-one thousand, one hundred eleven".