11020111087 has 2 divisors, whose sum is σ = 11020111088. Its totient is φ = 11020111086.

The previous prime is 11020111057. The next prime is 11020111129. The reversal of 11020111087 is 78011102011.

It is a weak prime.

It is an emirp because it is prime and its reverse (78011102011) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11020111087 - 2¹⁵ = 11020078319 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11020111057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5510055543 + 5510055544.

It is an arithmetic number, because the mean of its divisors is an integer number (5510055544).

Almost surely, 2^11020111087 is an apocalyptic number.

11020111087 is a deficient number, since it is larger than the sum of its proper divisors (1).

11020111087 is an equidigital number, since it uses as much as digits as its factorization.

11020111087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 112, while the sum is 22.

Adding to 11020111087 its reverse (78011102011), we get a palindrome (89031213098).

The spelling of 11020111087 in words is "eleven billion, twenty million, one hundred eleven thousand, eighty-seven".