1001011011011 has 8 divisors (see below), whose sum is σ = 1092031320000. Its totient is φ = 909993920040.

The previous prime is 1001011010933. The next prime is 1001011011023. The reversal of 1001011011011 is 1101101101001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1001011011011 - 2¹⁰ = 1001011009987 is a prime.

It is a Duffinian number.

1001011011011 is a modest number, since divided by 11011011 gives 1001 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 1001011011011.

It is not an unprimeable number, because it can be changed into a prime (1001011011031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 129461 + ... + 1420838.

It is an arithmetic number, because the mean of its divisors is an integer number (136503915000).

Almost surely, 2^{1001011011011} is an apocalyptic number.

1001011011011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1001011011011 is a deficient number, since it is larger than the sum of its proper divisors (91020308989).

1001011011011 is a wasteful number, since it uses less digits than its factorization.

1001011011011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1609009.

The product of its (nonzero) digits is 1, while the sum is 8.

Adding to 1001011011011 its reverse (1101101101001), we get a palindrome (2102112112012).

The spelling of 1001011011011 in words is "one trillion, one billion, eleven million, eleven thousand, eleven".