1201020577 has 2 divisors, whose sum is σ = 1201020578. Its totient is φ = 1201020576.

The previous prime is 1201020551. The next prime is 1201020581. The reversal of 1201020577 is 7750201021.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 926654481 + 274366096 = 30441^2 + 16564^2 .

It is an emirp because it is prime and its reverse (7750201021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1201020577 - 2⁷ = 1201020449 is a prime.

It is not a weakly prime, because it can be changed into another prime (1201026577) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600510288 + 600510289.

It is an arithmetic number, because the mean of its divisors is an integer number (600510289).

Almost surely, 2^1201020577 is an apocalyptic number.

It is an amenable number.

1201020577 is a deficient number, since it is larger than the sum of its proper divisors (1).

1201020577 is an equidigital number, since it uses as much as digits as its factorization.

1201020577 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 980, while the sum is 25.

The square root of 1201020577 is about 34655.7437807934. The cubic root of 1201020577 is about 1062.9597407337.

Adding to 1201020577 its reverse (7750201021), we get a palindrome (8951221598).

The spelling of 1201020577 in words is "one billion, two hundred one million, twenty thousand, five hundred seventy-seven".