1012201013 has 2 divisors, whose sum is σ = 1012201014. Its totient is φ = 1012201012.

The previous prime is 1012200947. The next prime is 1012201087. The reversal of 1012201013 is 3101022101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 927689764 + 84511249 = 30458^2 + 9193^2 .

It is a cyclic number.

It is not a de Polignac number, because 1012201013 - 2²⁰ = 1011152437 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1012200985 and 1012201003.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1012201513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506100506 + 506100507.

It is an arithmetic number, because the mean of its divisors is an integer number (506100507).

Almost surely, 2^1012201013 is an apocalyptic number.

It is an amenable number.

1012201013 is a deficient number, since it is larger than the sum of its proper divisors (1).

1012201013 is an equidigital number, since it uses as much as digits as its factorization.

1012201013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 1012201013 is about 31815.1066790605. The cubic root of 1012201013 is about 1004.0505750225.

Adding to 1012201013 its reverse (3101022101), we get a palindrome (4113223114).

The spelling of 1012201013 in words is "one billion, twelve million, two hundred one thousand, thirteen".