120200840077 has 2 divisors, whose sum is σ = 120200840078. Its totient is φ = 120200840076.

The previous prime is 120200840051. The next prime is 120200840147. The reversal of 120200840077 is 770048002021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 102360963721 + 17839876356 = 319939^2 + 133566^2 .

It is a cyclic number.

It is not a de Polignac number, because 120200840077 - 2³¹ = 118053356429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120200840047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60100420038 + 60100420039.

It is an arithmetic number, because the mean of its divisors is an integer number (60100420039).

Almost surely, 2^120200840077 is an apocalyptic number.

It is an amenable number.

120200840077 is a deficient number, since it is larger than the sum of its proper divisors (1).

120200840077 is an equidigital number, since it uses as much as digits as its factorization.

120200840077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6272, while the sum is 31.

Adding to 120200840077 its reverse (770048002021), we get a palindrome (890248842098).

The spelling of 120200840077 in words is "one hundred twenty billion, two hundred million, eight hundred forty thousand, seventy-seven".