102013243 has 12 divisors (see below), whose sum is σ = 110900680. Its totient is φ = 93768192.

The previous prime is 102013217. The next prime is 102013259. The reversal of 102013243 is 342310201.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-102013243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102013643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8323 + ... + 16531.

Almost surely, 2^102013243 is an apocalyptic number.

102013243 is a deficient number, since it is larger than the sum of its proper divisors (8887437).

102013243 is an equidigital number, since it uses as much as digits as its factorization.

102013243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8286 (or 8269 counting only the distinct ones).

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

The square root of 102013243 is about 10100.1605432785. The cubic root of 102013243 is about 467.2530927609.

Adding to 102013243 its reverse (342310201), we get a palindrome (444323444).

The spelling of 102013243 in words is "one hundred two million, thirteen thousand, two hundred forty-three".