2124123103 has 2 divisors, whose sum is σ = 2124123104. Its totient is φ = 2124123102.

The previous prime is 2124123101. The next prime is 2124123137. The reversal of 2124123103 is 3013214212.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2124123103 - 2¹ = 2124123101 is a prime.

Together with 2124123101, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2124123101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1062061551 + 1062061552.

It is an arithmetic number, because the mean of its divisors is an integer number (1062061552).

Almost surely, 2^2124123103 is an apocalyptic number.

2124123103 is a deficient number, since it is larger than the sum of its proper divisors (1).

2124123103 is an equidigital number, since it uses as much as digits as its factorization.

2124123103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 2124123103 is about 46088.2100216530. The cubic root of 2124123103 is about 1285.4639279307.

Adding to 2124123103 its reverse (3013214212), we get a palindrome (5137337315).

It can be divided in two parts, 21241 and 23103, that added together give a palindrome (44344).

The spelling of 2124123103 in words is "two billion, one hundred twenty-four million, one hundred twenty-three thousand, one hundred three".