11312013 has 8 divisors (see below), whose sum is σ = 15124000. Its totient is φ = 7520688.

The previous prime is 11312009. The next prime is 11312033. The reversal of 11312013 is 31021311.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11312013 - 2² = 11312009 is a prime.

It is a super-2 number, since 2×11312013² = 255923276224338, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 11312013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11312033) 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 7 ways as a sum of consecutive naturals, for example, 3838 + ... + 6111.

It is an arithmetic number, because the mean of its divisors is an integer number (1890500).

Almost surely, 2^11312013 is an apocalyptic number.

It is an amenable number.

11312013 is a deficient number, since it is larger than the sum of its proper divisors (3811987).

11312013 is an equidigital number, since it uses as much as digits as its factorization.

11312013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10331.

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 11312013 is about 3363.3336141394. Note that the first 3 decimals coincide. The cubic root of 11312013 is about 224.4811947813.

Adding to 11312013 its reverse (31021311), we get a palindrome (42333324).

The spelling of 11312013 in words is "eleven million, three hundred twelve thousand, thirteen".