1011001011011 has 2 divisors, whose sum is σ = 1011001011012. Its totient is φ = 1011001011010.

The previous prime is 1011001010977. The next prime is 1011001011047. The reversal of 1011001011011 is 1101101001101.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1011001011011 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1011001011011.

It is not a weakly prime, because it can be changed into another prime (1011001011061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505500505505 + 505500505506.

It is an arithmetic number, because the mean of its divisors is an integer number (505500505506).

Almost surely, 2^{1011001011011} is an apocalyptic number.

1011001011011 is a deficient number, since it is larger than the sum of its proper divisors (1).

1011001011011 is an equidigital number, since it uses as much as digits as its factorization.

1011001011011 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 8.

Adding to 1011001011011 its reverse (1101101001101), we get a palindrome (2112102012112).

It can be divided in two parts, 101100 and 1011011, that added together give a palindrome (1112111).

The spelling of 1011001011011 in words is "one trillion, eleven billion, one million, eleven thousand, eleven".