3120020121149 has 2 divisors, whose sum is σ = 3120020121150. Its totient is φ = 3120020121148.

The previous prime is 3120020121133. The next prime is 3120020121223. The reversal of 3120020121149 is 9411210200213.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2905541839225 + 214478281924 = 1704565^2 + 463118^2 .

It is a cyclic number.

It is not a de Polignac number, because 3120020121149 - 2⁴ = 3120020121133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3120020121349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1560010060574 + 1560010060575.

It is an arithmetic number, because the mean of its divisors is an integer number (1560010060575).

Almost surely, 2^{3120020121149} is an apocalyptic number.

It is an amenable number.

3120020121149 is a deficient number, since it is larger than the sum of its proper divisors (1).

3120020121149 is an equidigital number, since it uses as much as digits as its factorization.

3120020121149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 26.

The spelling of 3120020121149 in words is "three trillion, one hundred twenty billion, twenty million, one hundred twenty-one thousand, one hundred forty-nine".