103203144 has 48 divisors (see below), whose sum is σ = 304920720. Its totient is φ = 31273440.

The previous prime is 103203127. The next prime is 103203157. The reversal of 103203144 is 441302301.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 64362 + ... + 65945.

It is an arithmetic number, because the mean of its divisors is an integer number (6352515).

Almost surely, 2^103203144 is an apocalyptic number.

It is an amenable number.

103203144 is an abundant number, since it is smaller than the sum of its proper divisors (201717576).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

103203144 is a wasteful number, since it uses less digits than its factorization.

103203144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130330 (or 130323 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 103203144 is about 10158.8948217806. The cubic root of 103203144 is about 469.0627830294.

Adding to 103203144 its reverse (441302301), we get a palindrome (544505445).

The spelling of 103203144 in words is "one hundred three million, two hundred three thousand, one hundred forty-four".