202300001303123 has 4 divisors (see below), whose sum is σ = 204573035025720. Its totient is φ = 200026967580528.

The previous prime is 202300001303111. The next prime is 202300001303143. The reversal of 202300001303123 is 321303100003202.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-202300001303123 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 202300001303095 and 202300001303104.

It is not an unprimeable number, because it can be changed into a prime (202300001303143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1136516861165 + ... + 1136516861342.

It is an arithmetic number, because the mean of its divisors is an integer number (51143258756430).

Almost surely, 2^{202300001303123} is an apocalyptic number.

202300001303123 is a deficient number, since it is larger than the sum of its proper divisors (2273033722597).

202300001303123 is an equidigital number, since it uses as much as digits as its factorization.

202300001303123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2273033722596.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 202300001303123 its reverse (321303100003202), we get a palindrome (523603101306325).

The spelling of 202300001303123 in words is "two hundred two trillion, three hundred billion, one million, three hundred three thousand, one hundred twenty-three".