11221313313 has 8 divisors (see below), whose sum is σ = 17099144128. Its totient is φ = 6412179024.

The previous prime is 11221313293. The next prime is 11221313317. The reversal of 11221313313 is 31331312211.

It is a happy number.

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

It is not a de Polignac number, because 11221313313 - 2⁶ = 11221313249 is a prime.

It is a super-2 number, since 2×11221313313² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 534348253 = 11221313313 / (1 + 1 + 2 + 2 + 1 + 3 + 1 + 3 + 3 + 1 + 3).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11221313313.

It is not an unprimeable number, because it can be changed into a prime (11221313317) 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, 267174106 + ... + 267174147.

It is an arithmetic number, because the mean of its divisors is an integer number (2137393016).

Almost surely, 2^11221313313 is an apocalyptic number.

It is an amenable number.

11221313313 is a deficient number, since it is larger than the sum of its proper divisors (5877830815).

11221313313 is an equidigital number, since it uses as much as digits as its factorization.

11221313313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 534348263.

The product of its digits is 324, while the sum is 21.

Adding to 11221313313 its reverse (31331312211), we get a palindrome (42552625524).

The spelling of 11221313313 in words is "eleven billion, two hundred twenty-one million, three hundred thirteen thousand, three hundred thirteen".