13111113022237 has 2 divisors, whose sum is σ = 13111113022238. Its totient is φ = 13111113022236.

The previous prime is 13111113022213. The next prime is 13111113022243. The reversal of 13111113022237 is 73222031111131.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11071397771641 + 2039715250596 = 3327371^2 + 1428186^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13111113022237 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13111113022837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6555556511118 + 6555556511119.

It is an arithmetic number, because the mean of its divisors is an integer number (6555556511119).

Almost surely, 2^{13111113022237} is an apocalyptic number.

It is an amenable number.

13111113022237 is a deficient number, since it is larger than the sum of its proper divisors (1).

13111113022237 is an equidigital number, since it uses as much as digits as its factorization.

13111113022237 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512, while the sum is 28.

Adding to 13111113022237 its reverse (73222031111131), we get a palindrome (86333144133368).

The spelling of 13111113022237 in words is "thirteen trillion, one hundred eleven billion, one hundred thirteen million, twenty-two thousand, two hundred thirty-seven".