11012001011 has 8 divisors (see below), whose sum is σ = 12019548864. Its totient is φ = 10005529320.

The previous prime is 11012000969. The next prime is 11012001023. The reversal of 11012001011 is 11010021011.

It is a happy number.

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 11012001011 - 2²² = 11007806707 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11012001011.

It is not an unprimeable number, because it can be changed into a prime (11012001041) 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, 247565 + ... + 288638.

It is an arithmetic number, because the mean of its divisors is an integer number (1502443608).

Almost surely, 2^11012001011 is an apocalyptic number.

11012001011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11012001011 is a deficient number, since it is larger than the sum of its proper divisors (1007547853).

11012001011 is a wasteful number, since it uses less digits than its factorization.

11012001011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 538081.

The product of its (nonzero) digits is 2, while the sum is 8.

Adding to 11012001011 its reverse (11010021011), we get a palindrome (22022022022).

The spelling of 11012001011 in words is "eleven billion, twelve million, one thousand, eleven".