2123123103 has 8 divisors (see below), whose sum is σ = 3145367600. Its totient is φ = 1415415384.

The previous prime is 2123123063. The next prime is 2123123143. The reversal of 2123123103 is 3013213212.

It is an interprime number because it is at equal distance from previous prime (2123123063) and next prime (2123123143).

It is not a de Polignac number, because 2123123103 - 2¹⁶ = 2123057567 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 (2123123143) 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, 39317068 + ... + 39317121.

It is an arithmetic number, because the mean of its divisors is an integer number (393170950).

Almost surely, 2^2123123103 is an apocalyptic number.

2123123103 is a deficient number, since it is larger than the sum of its proper divisors (1022244497).

2123123103 is an equidigital number, since it uses as much as digits as its factorization.

2123123103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78634198 (or 78634192 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 2123123103 is about 46077.3599829678. The cubic root of 2123123103 is about 1285.2621716226.

Adding to 2123123103 its reverse (3013213212), we get a palindrome (5136336315).

The spelling of 2123123103 in words is "two billion, one hundred twenty-three million, one hundred twenty-three thousand, one hundred three".