1011010001011 has 4 divisors (see below), whose sum is σ = 1028145763800. Its totient is φ = 993874238224.

The previous prime is 1011010000997. The next prime is 1011010001017. The reversal of 1011010001011 is 1101000101101.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1011010001011 - 2¹³ = 1011009992819 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1011010000985 and 1011010001003.

It is not an unprimeable number, because it can be changed into a prime (1011010001017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8567881306 + ... + 8567881423.

It is an arithmetic number, because the mean of its divisors is an integer number (257036440950).

Almost surely, 2^{1011010001011} is an apocalyptic number.

1011010001011 is a deficient number, since it is larger than the sum of its proper divisors (17135762789).

1011010001011 is an equidigital number, since it uses as much as digits as its factorization.

1011010001011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17135762788.

The product of its (nonzero) digits is 1, while the sum is 7.

Adding to 1011010001011 its reverse (1101000101101), we get a palindrome (2112010102112).

The spelling of 1011010001011 in words is "one trillion, eleven billion, ten million, one thousand, eleven".