2103245123 has 16 divisors (see below), whose sum is σ = 2416774080. Its totient is φ = 1793010816.

The previous prime is 2103245093. The next prime is 2103245161. The reversal of 2103245123 is 3215423012.

It is a cyclic number.

It is not a de Polignac number, because 2103245123 - 2⁶ = 2103245059 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2103245923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1699661 + ... + 1700897.

It is an arithmetic number, because the mean of its divisors is an integer number (151048380).

Almost surely, 2^2103245123 is an apocalyptic number.

2103245123 is a deficient number, since it is larger than the sum of its proper divisors (313528957).

2103245123 is a wasteful number, since it uses less digits than its factorization.

2103245123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2366.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 2103245123 is about 45861.1504761928. The cubic root of 2103245123 is about 1281.2384504119.

Adding to 2103245123 its reverse (3215423012), we get a palindrome (5318668135).

The spelling of 2103245123 in words is "two billion, one hundred three million, two hundred forty-five thousand, one hundred twenty-three".