123135103 has 8 divisors (see below), whose sum is σ = 151551008. Its totient is φ = 97425504.

The previous prime is 123135071. The next prime is 123135109. The reversal of 123135103 is 301531321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 123135103 - 2⁵ = 123135071 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123135109) 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, 676476 + ... + 676657.

It is an arithmetic number, because the mean of its divisors is an integer number (18943876).

Almost surely, 2^123135103 is an apocalyptic number.

123135103 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

123135103 is a deficient number, since it is larger than the sum of its proper divisors (28415905).

123135103 is a wasteful number, since it uses less digits than its factorization.

123135103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1353153.

The product of its (nonzero) digits is 270, while the sum is 19.

The square root of 123135103 is about 11096.6257483976. The cubic root of 123135103 is about 497.5010014878.

Adding to 123135103 its reverse (301531321), we get a palindrome (424666424).

The spelling of 123135103 in words is "one hundred twenty-three million, one hundred thirty-five thousand, one hundred three".