1111312201213 has 2 divisors, whose sum is σ = 1111312201214. Its totient is φ = 1111312201212.

The previous prime is 1111312201211. The next prime is 1111312201253. The reversal of 1111312201213 is 3121022131111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 571200385284 + 540111815929 = 755778^2 + 734923^2 .

It is an emirp because it is prime and its reverse (3121022131111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1111312201213 - 2¹ = 1111312201211 is a prime.

Together with 1111312201211, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1111312201211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555656100606 + 555656100607.

It is an arithmetic number, because the mean of its divisors is an integer number (555656100607).

Almost surely, 2^{1111312201213} is an apocalyptic number.

It is an amenable number.

1111312201213 is a deficient number, since it is larger than the sum of its proper divisors (1).

1111312201213 is an equidigital number, since it uses as much as digits as its factorization.

1111312201213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 1111312201213 its reverse (3121022131111), we get a palindrome (4232334332324).

The spelling of 1111312201213 in words is "one trillion, one hundred eleven billion, three hundred twelve million, two hundred one thousand, two hundred thirteen".