102010243 has 4 divisors (see below), whose sum is σ = 105300928. Its totient is φ = 98719560.

The previous prime is 102010231. The next prime is 102010277. The reversal of 102010243 is 342010201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102010243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102011243) by changing a digit.

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

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1645296 + ... + 1645357.

It is an arithmetic number, because the mean of its divisors is an integer number (26325232).

Almost surely, 2^102010243 is an apocalyptic number.

102010243 is a deficient number, since it is larger than the sum of its proper divisors (3290685).

102010243 is an equidigital number, since it uses as much as digits as its factorization.

102010243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3290684.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 102010243 is about 10100.0120296958. The cubic root of 102010243 is about 467.2485123980.

Adding to 102010243 its reverse (342010201), we get a palindrome (444020444).

The spelling of 102010243 in words is "one hundred two million, ten thousand, two hundred forty-three".