102320143 has 2 divisors, whose sum is σ = 102320144. Its totient is φ = 102320142.

The previous prime is 102320131. The next prime is 102320191. The reversal of 102320143 is 341023201.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102320143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102320843) 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 as a sum of consecutive naturals, namely, 51160071 + 51160072.

It is an arithmetic number, because the mean of its divisors is an integer number (51160072).

Almost surely, 2^102320143 is an apocalyptic number.

102320143 is a deficient number, since it is larger than the sum of its proper divisors (1).

102320143 is an equidigital number, since it uses as much as digits as its factorization.

102320143 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 102320143 is about 10115.3419615948. The cubic root of 102320143 is about 467.7211901920.

Adding to 102320143 its reverse (341023201), we get a palindrome (443343344).

The spelling of 102320143 in words is "one hundred two million, three hundred twenty thousand, one hundred forty-three".