111013121321213 has 2 divisors, whose sum is σ = 111013121321214. Its totient is φ = 111013121321212.

The previous prime is 111013121321183. The next prime is 111013121321233. The reversal of 111013121321213 is 312123121310111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 84770266883929 + 26242854437284 = 9207077^2 + 5122778^2 .

It is a cyclic number.

It is not a de Polignac number, because 111013121321213 - 2⁸ = 111013121320957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111013121321233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55506560660606 + 55506560660607.

It is an arithmetic number, because the mean of its divisors is an integer number (55506560660607).

Almost surely, 2^{111013121321213} is an apocalyptic number.

It is an amenable number.

111013121321213 is a deficient number, since it is larger than the sum of its proper divisors (1).

111013121321213 is an equidigital number, since it uses as much as digits as its factorization.

111013121321213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 23.

Adding to 111013121321213 its reverse (312123121310111), we get a palindrome (423136242631324).

The spelling of 111013121321213 in words is "one hundred eleven trillion, thirteen billion, one hundred twenty-one million, three hundred twenty-one thousand, two hundred thirteen".