103203143 has 4 divisors (see below), whose sum is σ = 103230648. Its totient is φ = 103175640.

The previous prime is 103203127. The next prime is 103203157. The reversal of 103203143 is 341302301.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 341302301 = 19 ⋅17963279.

It is a cyclic number.

It is not a de Polignac number, because 103203143 - 2⁴ = 103203127 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 (103203343) 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, 7028 + ... + 15993.

It is an arithmetic number, because the mean of its divisors is an integer number (25807662).

Almost surely, 2^103203143 is an apocalyptic number.

103203143 is a deficient number, since it is larger than the sum of its proper divisors (27505).

103203143 is an equidigital number, since it uses as much as digits as its factorization.

103203143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27504.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 103203143 is about 10158.8947725626. The cubic root of 103203143 is about 469.0627815144.

Adding to 103203143 its reverse (341302301), we get a palindrome (444505444).

The spelling of 103203143 in words is "one hundred three million, two hundred three thousand, one hundred forty-three".