10203122123 has 4 divisors (see below), whose sum is σ = 10268110320. Its totient is φ = 10138133928.

The previous prime is 10203122093. The next prime is 10203122141. The reversal of 10203122123 is 32122130201.

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 10203122123 - 2²⁰ = 10202073547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10203125123) 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, 32493863 + ... + 32494176.

It is an arithmetic number, because the mean of its divisors is an integer number (2567027580).

Almost surely, 2^10203122123 is an apocalyptic number.

10203122123 is a deficient number, since it is larger than the sum of its proper divisors (64988197).

10203122123 is an equidigital number, since it uses as much as digits as its factorization.

10203122123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64988196.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 10203122123 its reverse (32122130201), we get a palindrome (42325252324).

The spelling of 10203122123 in words is "ten billion, two hundred three million, one hundred twenty-two thousand, one hundred twenty-three".