1011100001011 has 2 divisors, whose sum is σ = 1011100001012.
Its totient is φ = 1011100001010.
The previous prime is 1011100000987. The next prime is 1011100001029. The reversal of 1011100001011 is 1101000011101.
Adding to 1011100001011 its reverse (1101000011101), we get a palindrome (2112100012112).
It is a happy number.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 1011100001011 - 25 = 1011100000979 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 1011100000985 and 1011100001003.
It is not a weakly prime, because it can be changed into another prime (1011100001071) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505550000505 + 505550000506.
It is an arithmetic number, because the mean of its divisors is an integer number (505550000506).
Almost surely, 21011100001011 is an apocalyptic number.
1011100001011 is a deficient number, since it is larger than the sum of its proper divisors (1).
1011100001011 is an equidigital number, since it uses as much as digits as its factorization.
1011100001011 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 1, while the sum is 7.
The spelling of 1011100001011 in words is "one trillion, eleven billion, one hundred million, one thousand, eleven".