2103100040 has 16 divisors (see below), whose sum is σ = 4731975180. Its totient is φ = 841240000.

The previous prime is 2103100037. The next prime is 2103100079. The reversal of 2103100040 is 400013012.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2095625284 + 7474756 = 45778^2 + 2734^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2103099994 and 2103100030.

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, 26288711 + ... + 26288790.

Almost surely, 2^2103100040 is an apocalyptic number.

2103100040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2103100040 is an abundant number, since it is smaller than the sum of its proper divisors (2628875140).

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

2103100040 is a wasteful number, since it uses less digits than its factorization.

2103100040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52577512 (or 52577508 counting only the distinct ones).

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

The square root of 2103100040 is about 45859.5686852809. The cubic root of 2103100040 is about 1281.2089895579.

Adding to 2103100040 its reverse (400013012), we get a palindrome (2503113052).

The spelling of 2103100040 in words is "two billion, one hundred three million, one hundred thousand, forty".