203100120203203 has 4 divisors (see below), whose sum is σ = 203125664183008. Its totient is φ = 203074576223400.

The previous prime is 203100120203179. The next prime is 203100120203221. The reversal of 203100120203203 is 302302021001302.

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-203100120203203 is a prime.

It is a super-2 number, since 2×203100120203203² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (203100120263203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12771977976 + ... + 12771993877.

It is an arithmetic number, because the mean of its divisors is an integer number (50781416045752).

Almost surely, 2^{203100120203203} is an apocalyptic number.

203100120203203 is a deficient number, since it is larger than the sum of its proper divisors (25543979805).

203100120203203 is an equidigital number, since it uses as much as digits as its factorization.

203100120203203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25543979804.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 203100120203203 its reverse (302302021001302), we get a palindrome (505402141204505).

The spelling of 203100120203203 in words is "two hundred three trillion, one hundred billion, one hundred twenty million, two hundred three thousand, two hundred three".