2103243400 has 96 divisors (see below), whose sum is σ = 5263089480. Its totient is φ = 778752000.

The previous prime is 2103243397. The next prime is 2103243403. The reversal of 2103243400 is 43423012.

It is an interprime number because it is at equal distance from previous prime (2103243397) and next prime (2103243403).

It can be written as a sum of positive squares in 12 ways, for example, as 12376324 + 2090867076 = 3518^2 + 45726^2 .

It is not an unprimeable number, because it can be changed into a prime (2103243403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 202330 + ... + 212470.

Almost surely, 2^2103243400 is an apocalyptic number.

2103243400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2103243400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2631544740).

2103243400 is an abundant number, since it is smaller than the sum of its proper divisors (3159846080).

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

2103243400 is a wasteful number, since it uses less digits than its factorization.

2103243400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10235 (or 10226 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 2103243400 is about 45861.1316912263. The cubic root of 2103243400 is about 1281.2381005439.

Adding to 2103243400 its reverse (43423012), we get a palindrome (2146666412).

The spelling of 2103243400 in words is "two billion, one hundred three million, two hundred forty-three thousand, four hundred".