123120320102003 has 4 divisors (see below), whose sum is σ = 140708937259440. Its totient is φ = 105531702944568.

The previous prime is 123120320101981. The next prime is 123120320102009. The reversal of 123120320102003 is 300201023021321.

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 123120320102003 - 2⁶ = 123120320101939 is a prime.

It is a super-2 number, since 2×123120320102003² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123120320102009) 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, 8794308578708 + ... + 8794308578721.

It is an arithmetic number, because the mean of its divisors is an integer number (35177234314860).

Almost surely, 2^{123120320102003} is an apocalyptic number.

123120320102003 is a deficient number, since it is larger than the sum of its proper divisors (17588617157437).

123120320102003 is an equidigital number, since it uses as much as digits as its factorization.

123120320102003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17588617157436.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 123120320102003 its reverse (300201023021321), we get a palindrome (423321343123324).

The spelling of 123120320102003 in words is "one hundred twenty-three trillion, one hundred twenty billion, three hundred twenty million, one hundred two thousand, three".