102042223 has 2 divisors, whose sum is σ = 102042224. Its totient is φ = 102042222.

The previous prime is 102042221. The next prime is 102042251. The reversal of 102042223 is 322240201.

It is a weak prime.

It is an emirp because it is prime and its reverse (322240201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 102042223 - 2¹ = 102042221 is a prime.

Together with 102042221, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 102042197 and 102042206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102042221) 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 as a sum of consecutive naturals, namely, 51021111 + 51021112.

It is an arithmetic number, because the mean of its divisors is an integer number (51021112).

Almost surely, 2^102042223 is an apocalyptic number.

102042223 is a deficient number, since it is larger than the sum of its proper divisors (1).

102042223 is an equidigital number, since it uses as much as digits as its factorization.

102042223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 102042223 is about 10101.5950720666. The cubic root of 102042223 is about 467.2973344436.

Adding to 102042223 its reverse (322240201), we get a palindrome (424282424).

The spelling of 102042223 in words is "one hundred two million, forty-two thousand, two hundred twenty-three".