100103240 has 16 divisors (see below), whose sum is σ = 225232380. Its totient is φ = 40041280.

The previous prime is 100103231. The next prime is 100103243. The reversal of 100103240 is 42301001.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 96079204 + 4024036 = 9802^2 + 2006^2 .

It is not an unprimeable number, because it can be changed into a prime (100103243) 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, 1251251 + ... + 1251330.

Almost surely, 2^100103240 is an apocalyptic number.

100103240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100103240 is an abundant number, since it is smaller than the sum of its proper divisors (125129140).

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

100103240 is a wasteful number, since it uses less digits than its factorization.

100103240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2502592 (or 2502588 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 100103240 is about 10005.1606683751. The cubic root of 100103240 is about 464.3185609672.

Adding to 100103240 its reverse (42301001), we get a palindrome (142404241).

The spelling of 100103240 in words is "one hundred million, one hundred three thousand, two hundred forty".