202103123 has 8 divisors (see below), whose sum is σ = 214458192. Its totient is φ = 189799936.

The previous prime is 202103119. The next prime is 202103129. The reversal of 202103123 is 321301202.

It is a happy number.

202103123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 202103123 - 2² = 202103119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 202103098 and 202103107.

It is not an unprimeable number, because it can be changed into a prime (202103129) 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, 4790 + ... + 20667.

It is an arithmetic number, because the mean of its divisors is an integer number (26807274).

Almost surely, 2^202103123 is an apocalyptic number.

202103123 is a deficient number, since it is larger than the sum of its proper divisors (12355069).

202103123 is a wasteful number, since it uses less digits than its factorization.

202103123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25941.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 202103123 is about 14216.2977951364. The cubic root of 202103123 is about 586.8462604790.

Adding to 202103123 its reverse (321301202), we get a palindrome (523404325).

The spelling of 202103123 in words is "two hundred two million, one hundred three thousand, one hundred twenty-three".