103240420 has 24 divisors (see below), whose sum is σ = 221848704. Its totient is φ = 40335456.

The previous prime is 103240391. The next prime is 103240427. The reversal of 103240420 is 24042301.

It is a junction number, because it is equal to n+sod(n) for n = 103240394 and 103240403.

It is not an unprimeable number, because it can be changed into a prime (103240427) 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 7 ways as a sum of consecutive naturals, for example, 59164 + ... + 60883.

It is an arithmetic number, because the mean of its divisors is an integer number (9243696).

Almost surely, 2^103240420 is an apocalyptic number.

103240420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

103240420 is an abundant number, since it is smaller than the sum of its proper divisors (118608284).

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

103240420 is a wasteful number, since it uses less digits than its factorization.

103240420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120099 (or 120097 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 103240420 is about 10160.7293045332. The cubic root of 103240420 is about 469.1192499125.

Adding to 103240420 its reverse (24042301), we get a palindrome (127282721).

The spelling of 103240420 in words is "one hundred three million, two hundred forty thousand, four hundred twenty".