123103103123 has 24 divisors (see below), whose sum is σ = 168236817840. Its totient is φ = 88545683520.

The previous prime is 123103103087. The next prime is 123103103147. The reversal of 123103103123 is 321301301321.

It is not a de Polignac number, because 123103103123 - 2⁸ = 123103102867 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 123103103095 and 123103103104.

It is not an unprimeable number, because it can be changed into a prime (123103105123) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8777288 + ... + 8791301.

It is an arithmetic number, because the mean of its divisors is an integer number (7009867410).

Almost surely, 2^123103103123 is an apocalyptic number.

123103103123 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

123103103123 is a deficient number, since it is larger than the sum of its proper divisors (45133714717).

123103103123 is a wasteful number, since it uses less digits than its factorization.

123103103123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17568627 (or 17568620 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 123103103123 its reverse (321301301321), we get a palindrome (444404404444).

The spelling of 123103103123 in words is "one hundred twenty-three billion, one hundred three million, one hundred three thousand, one hundred twenty-three".