102243013 has 2 divisors, whose sum is σ = 102243014. Its totient is φ = 102243012.

The previous prime is 102242993. The next prime is 102243017. The reversal of 102243013 is 310342201.

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., 59706529 + 42536484 = 7727^2 + 6522^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102243013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102243017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51121506 + 51121507.

It is an arithmetic number, because the mean of its divisors is an integer number (51121507).

Almost surely, 2^102243013 is an apocalyptic number.

It is an amenable number.

102243013 is a deficient number, since it is larger than the sum of its proper divisors (1).

102243013 is an equidigital number, since it uses as much as digits as its factorization.

102243013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 102243013 is about 10111.5287172613. The cubic root of 102243013 is about 467.6036362651.

Adding to 102243013 its reverse (310342201), we get a palindrome (412585214).

The spelling of 102243013 in words is "one hundred two million, two hundred forty-three thousand, thirteen".