11012003011 has 16 divisors (see below), whose sum is σ = 11987455680. Its totient is φ = 10073548800.

The previous prime is 11012002987. The next prime is 11012003017. The reversal of 11012003011 is 11030021011.

It is a cyclic number.

It is not a de Polignac number, because 11012003011 - 2⁹ = 11012002499 is a prime.

It is a super-2 number, since 2×11012003011² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11012003017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 625986 + ... + 643336.

It is an arithmetic number, because the mean of its divisors is an integer number (749215980).

Almost surely, 2^11012003011 is an apocalyptic number.

11012003011 is a deficient number, since it is larger than the sum of its proper divisors (975452669).

11012003011 is a wasteful number, since it uses less digits than its factorization.

11012003011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18414.

The product of its (nonzero) digits is 6, while the sum is 10.

Adding to 11012003011 its reverse (11030021011), we get a palindrome (22042024022).

The spelling of 11012003011 in words is "eleven billion, twelve million, three thousand, eleven".