1010200561 has 4 divisors (see below), whose sum is σ = 1010602224. Its totient is φ = 1009798900.

The previous prime is 1010200559. The next prime is 1010200573. The reversal of 1010200561 is 1650020101.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1010200561 - 2¹ = 1010200559 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1010200501) 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 in 3 ways as a sum of consecutive naturals, for example, 197035 + ... + 202096.

It is an arithmetic number, because the mean of its divisors is an integer number (252650556).

Almost surely, 2^1010200561 is an apocalyptic number.

It is an amenable number.

1010200561 is a deficient number, since it is larger than the sum of its proper divisors (401663).

1010200561 is an equidigital number, since it uses as much as digits as its factorization.

1010200561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401662.

The product of its (nonzero) digits is 60, while the sum is 16.

The square root of 1010200561 is about 31783.6524175558. The cubic root of 1010200561 is about 1003.3886908036.

Adding to 1010200561 its reverse (1650020101), we get a palindrome (2660220662).

The spelling of 1010200561 in words is "one billion, ten million, two hundred thousand, five hundred sixty-one".