1200120349 has 2 divisors, whose sum is σ = 1200120350. Its totient is φ = 1200120348.

The previous prime is 1200120343. The next prime is 1200120401. The reversal of 1200120349 is 9430210021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 696432100 + 503688249 = 26390^2 + 22443^2 .

It is a cyclic number.

It is not a de Polignac number, because 1200120349 - 2¹⁹ = 1199596061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1200120343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600060174 + 600060175.

It is an arithmetic number, because the mean of its divisors is an integer number (600060175).

Almost surely, 2^1200120349 is an apocalyptic number.

It is an amenable number.

1200120349 is a deficient number, since it is larger than the sum of its proper divisors (1).

1200120349 is an equidigital number, since it uses as much as digits as its factorization.

1200120349 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 1200120349 is about 34642.7531960149. The cubic root of 1200120349 is about 1062.6940929662.

The spelling of 1200120349 in words is "one billion, two hundred million, one hundred twenty thousand, three hundred forty-nine".