203020301201123 has 4 divisors (see below), whose sum is σ = 232023201372720. Its totient is φ = 174017401029528.

The previous prime is 203020301201119. The next prime is 203020301201129. The reversal of 203020301201123 is 321102103020302.

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

It is not a de Polignac number, because 203020301201123 - 2² = 203020301201119 is a prime.

It is a super-2 number, since 2×203020301201123² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 203020301201095 and 203020301201104.

It is not an unprimeable number, because it can be changed into a prime (203020301201129) 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, 14501450085788 + ... + 14501450085801.

It is an arithmetic number, because the mean of its divisors is an integer number (58005800343180).

Almost surely, 2^{203020301201123} is an apocalyptic number.

203020301201123 is a deficient number, since it is larger than the sum of its proper divisors (29002900171597).

203020301201123 is an equidigital number, since it uses as much as digits as its factorization.

203020301201123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29002900171596.

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

Adding to 203020301201123 its reverse (321102103020302), we get a palindrome (524122404221425).

The spelling of 203020301201123 in words is "two hundred three trillion, twenty billion, three hundred one million, two hundred one thousand, one hundred twenty-three".