102503423 has 24 divisors (see below), whose sum is σ = 119822976. Its totient is φ = 86936400.

The previous prime is 102503411. The next prime is 102503441. The reversal of 102503423 is 324305201.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-102503423 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102503395 and 102503404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102503123) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 329438 + ... + 329748.

It is an arithmetic number, because the mean of its divisors is an integer number (4992624).

Almost surely, 2^102503423 is an apocalyptic number.

102503423 is a deficient number, since it is larger than the sum of its proper divisors (17319553).

102503423 is a wasteful number, since it uses less digits than its factorization.

102503423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443 (or 424 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 102503423 is about 10124.3974141674. The cubic root of 102503423 is about 468.0002906833. Note that the first 3 decimals are identical.

Adding to 102503423 its reverse (324305201), we get a palindrome (426808624).

The spelling of 102503423 in words is "one hundred two million, five hundred three thousand, four hundred twenty-three".