3120020121349 has 2 divisors, whose sum is σ = 3120020121350. Its totient is φ = 3120020121348.

The previous prime is 3120020121329. The next prime is 3120020121359. The reversal of 3120020121349 is 9431210200213.

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., 2778722302500 + 341297818849 = 1666950^2 + 584207^2 .

It is an emirp because it is prime and its reverse (9431210200213) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3120020121349 - 2³³ = 3111430186757 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3120020121329) 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, 1560010060674 + 1560010060675.

It is an arithmetic number, because the mean of its divisors is an integer number (1560010060675).

Almost surely, 2^{3120020121349} is an apocalyptic number.

It is an amenable number.

3120020121349 is a deficient number, since it is larger than the sum of its proper divisors (1).

3120020121349 is an equidigital number, since it uses as much as digits as its factorization.

3120020121349 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 28.

The spelling of 3120020121349 in words is "three trillion, one hundred twenty billion, twenty million, one hundred twenty-one thousand, three hundred forty-nine".