2142103 has 4 divisors (see below), whose sum is σ = 2146240. Its totient is φ = 2137968.

The previous prime is 2142097. The next prime is 2142121. The reversal of 2142103 is 3012412.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2142103 - 2⁹ = 2141591 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2142163) 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, 1158 + ... + 2371.

It is an arithmetic number, because the mean of its divisors is an integer number (536560).

2^2142103 is an apocalyptic number.

2142103 is a deficient number, since it is larger than the sum of its proper divisors (4137).

2142103 is an equidigital number, since it uses as much as digits as its factorization.

2142103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4136.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 2142103 is about 1463.5924979310. The cubic root of 2142103 is about 128.9080730406.

Adding to 2142103 its reverse (3012412), we get a palindrome (5154515).

It can be divided in two parts, 21 and 42103, that added together give a palindrome (42124).

The spelling of 2142103 in words is "two million, one hundred forty-two thousand, one hundred three".