123133112103 has 16 divisors (see below), whose sum is σ = 167916243456. Its totient is φ = 80224478400.

The previous prime is 123133112083. The next prime is 123133112161. The reversal of 123133112103 is 301211331321.

It is a happy number.

It is not a de Polignac number, because 123133112103 - 2²² = 123128917799 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 123133112103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123133112183) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 542998 + ... + 735603.

It is an arithmetic number, because the mean of its divisors is an integer number (10494765216).

Almost surely, 2^123133112103 is an apocalyptic number.

123133112103 is a deficient number, since it is larger than the sum of its proper divisors (44783131353).

123133112103 is a wasteful number, since it uses less digits than its factorization.

123133112103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1279334.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 123133112103 its reverse (301211331321), we get a palindrome (424344443424).

The spelling of 123133112103 in words is "one hundred twenty-three billion, one hundred thirty-three million, one hundred twelve thousand, one hundred three".