2103243 has 8 divisors (see below), whose sum is σ = 2952000. Its totient is φ = 1328328.

The previous prime is 2103239. The next prime is 2103301. The reversal of 2103243 is 3423012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2103243 - 2² = 2103239 is a prime.

It is a super-2 number, since 2×2103243² = 8847262234098, which contains 22 as substring.

2103243 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2103743) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18393 + ... + 18506.

It is an arithmetic number, because the mean of its divisors is an integer number (369000).

2^2103243 is an apocalyptic number.

2103243 is a deficient number, since it is larger than the sum of its proper divisors (848757).

2103243 is a wasteful number, since it uses less digits than its factorization.

2103243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36921.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 2103243 is about 1450.2561842654. The cubic root of 2103243 is about 128.1238019321.

Adding to 2103243 its reverse (3423012), we get a palindrome (5526255).

It can be divided in two parts, 2103 and 243, that added together give a triangular number (2346 = T₆₈).

The spelling of 2103243 in words is "two million, one hundred three thousand, two hundred forty-three".