11211013 has 8 divisors (see below), whose sum is σ = 12332736. Its totient is φ = 10190620.

The previous prime is 11210993. The next prime is 11211029. The reversal of 11211013 is 31011211.

11211013 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11211013 - 2⁵ = 11210981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11211913) 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, 2881 + ... + 5542.

It is an arithmetic number, because the mean of its divisors is an integer number (1541592).

Almost surely, 2^11211013 is an apocalyptic number.

It is an amenable number.

11211013 is a deficient number, since it is larger than the sum of its proper divisors (1121723).

11211013 is an frugal number, since it uses more digits than its factorization.

11211013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8456 (or 8434 counting only the distinct ones).

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

The square root of 11211013 is about 3348.2850834420. The cubic root of 11211013 is about 223.8110984483.

Adding to 11211013 its reverse (31011211), we get a palindrome (42222224).

The spelling of 11211013 in words is "eleven million, two hundred eleven thousand, thirteen".