102443423 has 4 divisors (see below), whose sum is σ = 102979968. Its totient is φ = 101906880.

The previous prime is 102443401. The next prime is 102443431. The reversal of 102443423 is 324344201.

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

It is a cyclic number.

It is not a de Polignac number, because 102443423 - 2⁶ = 102443359 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102443443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 267986 + ... + 268367.

It is an arithmetic number, because the mean of its divisors is an integer number (25744992).

Almost surely, 2^102443423 is an apocalyptic number.

102443423 is a deficient number, since it is larger than the sum of its proper divisors (536545).

102443423 is an equidigital number, since it uses as much as digits as its factorization.

102443423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 536544.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 102443423 is about 10121.4338411116. The cubic root of 102443423 is about 467.9089587803.

Adding to 102443423 its reverse (324344201), we get a palindrome (426787624).

The spelling of 102443423 in words is "one hundred two million, four hundred forty-three thousand, four hundred twenty-three".