11111033101213 has 2 divisors, whose sum is σ = 11111033101214. Its totient is φ = 11111033101212.

The previous prime is 11111033101211. The next prime is 11111033101241. The reversal of 11111033101213 is 31210133011111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10409831186329 + 701201914884 = 3226427^2 + 837378^2 .

It is a cyclic number.

It is not a de Polignac number, because 11111033101213 - 2¹ = 11111033101211 is a prime.

Together with 11111033101211, 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 (11111033101211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5555516550606 + 5555516550607.

It is an arithmetic number, because the mean of its divisors is an integer number (5555516550607).

Almost surely, 2^{11111033101213} is an apocalyptic number.

It is an amenable number.

11111033101213 is a deficient number, since it is larger than the sum of its proper divisors (1).

11111033101213 is an equidigital number, since it uses as much as digits as its factorization.

11111033101213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54, while the sum is 19.

Adding to 11111033101213 its reverse (31210133011111), we get a palindrome (42321166112324).

The spelling of 11111033101213 in words is "eleven trillion, one hundred eleven billion, thirty-three million, one hundred one thousand, two hundred thirteen".