120209869049 has 2 divisors, whose sum is σ = 120209869050. Its totient is φ = 120209869048.

The previous prime is 120209869033. The next prime is 120209869069. The reversal of 120209869049 is 940968902021.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 112305414400 + 7904454649 = 335120^2 + 88907^2 .

It is an emirp because it is prime and its reverse (940968902021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 120209869049 - 2⁴ = 120209869033 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 120209868988 and 120209869006.

It is not a weakly prime, because it can be changed into another prime (120209869069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60104934524 + 60104934525.

It is an arithmetic number, because the mean of its divisors is an integer number (60104934525).

Almost surely, 2^120209869049 is an apocalyptic number.

It is an amenable number.

120209869049 is a deficient number, since it is larger than the sum of its proper divisors (1).

120209869049 is an equidigital number, since it uses as much as digits as its factorization.

120209869049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 559872, while the sum is 50.

The spelling of 120209869049 in words is "one hundred twenty billion, two hundred nine million, eight hundred sixty-nine thousand, forty-nine".