3111213321197 has 2 divisors, whose sum is σ = 3111213321198. Its totient is φ = 3111213321196.

The previous prime is 3111213321133. The next prime is 3111213321239. The reversal of 3111213321197 is 7911233121113.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3105028127881 + 6185193316 = 1762109^2 + 78646^2 .

It is a cyclic number.

It is not a de Polignac number, because 3111213321197 - 2⁶ = 3111213321133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3111213321397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1555606660598 + 1555606660599.

It is an arithmetic number, because the mean of its divisors is an integer number (1555606660599).

Almost surely, 2^{3111213321197} is an apocalyptic number.

It is an amenable number.

3111213321197 is a deficient number, since it is larger than the sum of its proper divisors (1).

3111213321197 is an equidigital number, since it uses as much as digits as its factorization.

3111213321197 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6804, while the sum is 35.

The spelling of 3111213321197 in words is "three trillion, one hundred eleven billion, two hundred thirteen million, three hundred twenty-one thousand, one hundred ninety-seven".