11313012221 has 8 divisors (see below), whose sum is σ = 12934473024. Its totient is φ = 9692880480.

The previous prime is 11313012211. The next prime is 11313012241. The reversal of 11313012221 is 12221031311.

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

It is a cyclic number.

It is not a de Polignac number, because 11313012221 - 2⁶ = 11313012157 is a prime.

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 11313012221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11313012211) 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, 313955 + ... + 348128.

It is an arithmetic number, because the mean of its divisors is an integer number (1616809128).

Almost surely, 2^11313012221 is an apocalyptic number.

It is an amenable number.

11313012221 is a deficient number, since it is larger than the sum of its proper divisors (1621460803).

11313012221 is an equidigital number, since it uses as much as digits as its factorization.

11313012221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 664531.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 11313012221 its reverse (12221031311), we get a palindrome (23534043532).

The spelling of 11313012221 in words is "eleven billion, three hundred thirteen million, twelve thousand, two hundred twenty-one".