2103123103111 has 4 divisors (see below), whose sum is σ = 2103129518224. Its totient is φ = 2103116688000.

The previous prime is 2103123103079. The next prime is 2103123103127. The reversal of 2103123103111 is 1113013213012.

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 2103123103111 - 2⁵ = 2103123103079 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 (2103123103811) 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, 2687715 + ... + 3380836.

It is an arithmetic number, because the mean of its divisors is an integer number (525782379556).

Almost surely, 2^{2103123103111} is an apocalyptic number.

2103123103111 is a deficient number, since it is larger than the sum of its proper divisors (6415113).

2103123103111 is an equidigital number, since it uses as much as digits as its factorization.

2103123103111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6415112.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 2103123103111 its reverse (1113013213012), we get a palindrome (3216136316123).

The spelling of 2103123103111 in words is "two trillion, one hundred three billion, one hundred twenty-three million, one hundred three thousand, one hundred eleven".