11121011011087 has 2 divisors, whose sum is σ = 11121011011088. Its totient is φ = 11121011011086.

The previous prime is 11121011011043. The next prime is 11121011011109. The reversal of 11121011011087 is 78011011012111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11121011011087 - 2¹⁹ = 11121010486799 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11121011011387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5560505505543 + 5560505505544.

It is an arithmetic number, because the mean of its divisors is an integer number (5560505505544).

Almost surely, 2^{11121011011087} is an apocalyptic number.

11121011011087 is a deficient number, since it is larger than the sum of its proper divisors (1).

11121011011087 is an equidigital number, since it uses as much as digits as its factorization.

11121011011087 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 25.

Adding to 11121011011087 its reverse (78011011012111), we get a palindrome (89132022023198).

The spelling of 11121011011087 in words is "eleven trillion, one hundred twenty-one billion, eleven million, eleven thousand, eighty-seven".