202103003123 has 4 divisors (see below), whose sum is σ = 230974860720. Its totient is φ = 173231145528.

The previous prime is 202103003119. The next prime is 202103003131. The reversal of 202103003123 is 321300301202.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 202103003123 - 2² = 202103003119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202103003153) 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, 14435928788 + ... + 14435928801.

It is an arithmetic number, because the mean of its divisors is an integer number (57743715180).

Almost surely, 2^202103003123 is an apocalyptic number.

202103003123 is a deficient number, since it is larger than the sum of its proper divisors (28871857597).

202103003123 is an equidigital number, since it uses as much as digits as its factorization.

202103003123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28871857596.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 202103003123 its reverse (321300301202), we get a palindrome (523403304325).

The spelling of 202103003123 in words is "two hundred two billion, one hundred three million, three thousand, one hundred twenty-three".