11101312213 has 8 divisors (see below), whose sum is σ = 11410872408. Its totient is φ = 10795459584.

The previous prime is 11101312177. The next prime is 11101312217. The reversal of 11101312213 is 31221310111.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 3005451684 + 8095860529 = 54822^2 + 89977^2 .

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 11101312213 - 2⁹ = 11101311701 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 (11101312217) 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, 920820 + ... + 932797.

It is an arithmetic number, because the mean of its divisors is an integer number (1426359051).

Almost surely, 2^11101312213 is an apocalyptic number.

It is an amenable number.

11101312213 is a deficient number, since it is larger than the sum of its proper divisors (309560195).

11101312213 is a wasteful number, since it uses less digits than its factorization.

11101312213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1853783.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 11101312213 its reverse (31221310111), we get a palindrome (42322622324).

The spelling of 11101312213 in words is "eleven billion, one hundred one million, three hundred twelve thousand, two hundred thirteen".