103203120 has 40 divisors (see below), whose sum is σ = 319930416. Its totient is φ = 27520768.

The previous prime is 103203071. The next prime is 103203127. The reversal of 103203120 is 21302301.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 103203096 and 103203105.

It is not an unprimeable number, because it can be changed into a prime (103203127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 214767 + ... + 215246.

Almost surely, 2^103203120 is an apocalyptic number.

103203120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

103203120 is an abundant number, since it is smaller than the sum of its proper divisors (216727296).

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

103203120 is a wasteful number, since it uses less digits than its factorization.

103203120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430029 (or 430023 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 103203120 is about 10158.8936405496. The cubic root of 103203120 is about 469.0627466690.

Adding to 103203120 its reverse (21302301), we get a palindrome (124505421).

The spelling of 103203120 in words is "one hundred three million, two hundred three thousand, one hundred twenty".