11010501011 has 4 divisors (see below), whose sum is σ = 11022999624. Its totient is φ = 10998002400.

The previous prime is 11010501001. The next prime is 11010501017.

It is a happy number.

11010501011 is nontrivially palindromic in base 10.

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 11010501011 - 2⁶ = 11010500947 is a prime.

It is a super-2 number, since 2×11010501011² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11010500983 and 11010501001.

It is not an unprimeable number, because it can be changed into a prime (11010501017) 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, 6247985 + ... + 6249746.

It is an arithmetic number, because the mean of its divisors is an integer number (2755749906).

Almost surely, 2^11010501011 is an apocalyptic number.

11010501011 is a deficient number, since it is larger than the sum of its proper divisors (12498613).

11010501011 is an equidigital number, since it uses as much as digits as its factorization.

11010501011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12498612.

The product of its (nonzero) digits is 5, while the sum is 11.

Multiplying 11010501011 by its sum of digits (11), we get a palindrome (121115511121).

The spelling of 11010501011 in words is "eleven billion, ten million, five hundred one thousand, eleven".