102003143 has 4 divisors (see below), whose sum is σ = 111276168. Its totient is φ = 92730120.

The previous prime is 102003127. The next prime is 102003149. The reversal of 102003143 is 341300201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 341300201 = 11 ⋅31027291.

It is a cyclic number.

It is not a de Polignac number, because 102003143 - 2⁴ = 102003127 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 (102003149) 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 3 ways as a sum of consecutive naturals, for example, 4636496 + ... + 4636517.

It is an arithmetic number, because the mean of its divisors is an integer number (27819042).

Almost surely, 2^102003143 is an apocalyptic number.

102003143 is a deficient number, since it is larger than the sum of its proper divisors (9273025).

102003143 is an equidigital number, since it uses as much as digits as its factorization.

102003143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9273024.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 102003143 is about 10099.6605388498. The cubic root of 102003143 is about 467.2376718481.

Adding to 102003143 its reverse (341300201), we get a palindrome (443303344).

The spelling of 102003143 in words is "one hundred two million, three thousand, one hundred forty-three".