11311013 has 12 divisors (see below), whose sum is σ = 13214880. Its totient is φ = 9653112.

The previous prime is 11310989. The next prime is 11311019. The reversal of 11311013 is 31011311.

It is a happy number.

It is not a de Polignac number, because 11311013 - 2¹⁴ = 11294629 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11310985 and 11311003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11311019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17270 + ... + 17912.

It is an arithmetic number, because the mean of its divisors is an integer number (1101240).

Almost surely, 2^11311013 is an apocalyptic number.

It is an amenable number.

11311013 is a deficient number, since it is larger than the sum of its proper divisors (1903867).

11311013 is an equidigital number, since it uses as much as digits as its factorization.

11311013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1016 (or 1009 counting only the distinct ones).

The product of its (nonzero) digits is 9, while the sum is 11.

The square root of 11311013 is about 3363.1849488246. The cubic root of 11311013 is about 224.4745797545.

Adding to 11311013 its reverse (31011311), we get a palindrome (42322324).

The spelling of 11311013 in words is "eleven million, three hundred eleven thousand, thirteen".