103040020 has 12 divisors (see below), whose sum is σ = 216384084. Its totient is φ = 41216000.

The previous prime is 103039999. The next prime is 103040033. The reversal of 103040020 is 20040301.

It can be written as a sum of positive squares in 2 ways, for example, as 30074256 + 72965764 = 5484^2 + 8542^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 103039979 and 103040006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2575981 + ... + 2576020.

It is an arithmetic number, because the mean of its divisors is an integer number (18032007).

Almost surely, 2^103040020 is an apocalyptic number.

103040020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

103040020 is an abundant number, since it is smaller than the sum of its proper divisors (113344064).

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

103040020 is a wasteful number, since it uses less digits than its factorization.

103040020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5152010 (or 5152008 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 103040020 is about 10150.8630174976. The cubic root of 103040020 is about 468.8155174792.

Adding to 103040020 its reverse (20040301), we get a palindrome (123080321).

The spelling of 103040020 in words is "one hundred three million, forty thousand, twenty".