103240520 has 16 divisors (see below), whose sum is σ = 232291260. Its totient is φ = 41296192.

The previous prime is 103240513. The next prime is 103240523. The reversal of 103240520 is 25042301.

It can be written as a sum of positive squares in 2 ways, for example, as 101566084 + 1674436 = 10078^2 + 1294^2 .

It is not an unprimeable number, because it can be changed into a prime (103240523) 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, 1290467 + ... + 1290546.

Almost surely, 2^103240520 is an apocalyptic number.

103240520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

103240520 is an abundant number, since it is smaller than the sum of its proper divisors (129050740).

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

103240520 is a wasteful number, since it uses less digits than its factorization.

103240520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2581024 (or 2581020 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 103240520 is about 10160.7342254386. The cubic root of 103240520 is about 469.1194013774.

Adding to 103240520 its reverse (25042301), we get a palindrome (128282821).

The spelling of 103240520 in words is "one hundred three million, two hundred forty thousand, five hundred twenty".