1200011020049 has 2 divisors, whose sum is σ = 1200011020050. Its totient is φ = 1200011020048.

The previous prime is 1200011019971. The next prime is 1200011020081. The reversal of 1200011020049 is 9400201100021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1155324019600 + 44687000449 = 1074860^2 + 211393^2 .

It is an emirp because it is prime and its reverse (9400201100021) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1200011020049 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1200011020049.

It is not a weakly prime, because it can be changed into another prime (1200011020099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600005510024 + 600005510025.

It is an arithmetic number, because the mean of its divisors is an integer number (600005510025).

Almost surely, 2^{1200011020049} is an apocalyptic number.

It is an amenable number.

1200011020049 is a deficient number, since it is larger than the sum of its proper divisors (1).

1200011020049 is an equidigital number, since it uses as much as digits as its factorization.

1200011020049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 20.

The spelling of 1200011020049 in words is "one trillion, two hundred billion, eleven million, twenty thousand, forty-nine".