120020077 has 2 divisors, whose sum is σ = 120020078. Its totient is φ = 120020076.

The previous prime is 120020059. The next prime is 120020099. The reversal of 120020077 is 770020021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 82246761 + 37773316 = 9069^2 + 6146^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120020077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120020027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60010038 + 60010039.

It is an arithmetic number, because the mean of its divisors is an integer number (60010039).

Almost surely, 2^120020077 is an apocalyptic number.

It is an amenable number.

120020077 is a deficient number, since it is larger than the sum of its proper divisors (1).

120020077 is an equidigital number, since it uses as much as digits as its factorization.

120020077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 196, while the sum is 19.

The square root of 120020077 is about 10955.3674972590. The cubic root of 120020077 is about 493.2699211876.

Adding to 120020077 its reverse (770020021), we get a palindrome (890040098).

The spelling of 120020077 in words is "one hundred twenty million, twenty thousand, seventy-seven".