123120010203 has 32 divisors (see below), whose sum is σ = 175712087040. Its totient is φ = 76450728960.

The previous prime is 123120010177. The next prime is 123120010249. The reversal of 123120010203 is 302010021321.

It is not a de Polignac number, because 123120010203 - 2⁵ = 123120010171 is a prime.

It is not an unprimeable number, because it can be changed into a prime (123120010283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9231726 + ... + 9245052.

It is an arithmetic number, because the mean of its divisors is an integer number (5491002720).

Almost surely, 2^123120010203 is an apocalyptic number.

123120010203 is a deficient number, since it is larger than the sum of its proper divisors (52592076837).

123120010203 is a wasteful number, since it uses less digits than its factorization.

123120010203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16067.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 123120010203 its reverse (302010021321), we get a palindrome (425130031524).

The spelling of 123120010203 in words is "one hundred twenty-three billion, one hundred twenty million, ten thousand, two hundred three".