203212123203 has 8 divisors (see below), whose sum is σ = 274379238400. Its totient is φ = 133759878408.

The previous prime is 203212123193. The next prime is 203212123229. The reversal of 203212123203 is 302321212302.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 203212123203 - 2¹³ = 203212115011 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 203212123203.

It is not an unprimeable number, because it can be changed into a prime (203212123243) 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, 428717323 + ... + 428717796.

It is an arithmetic number, because the mean of its divisors is an integer number (34297404800).

Almost surely, 2^203212123203 is an apocalyptic number.

203212123203 is a deficient number, since it is larger than the sum of its proper divisors (71167115197).

203212123203 is an equidigital number, since it uses as much as digits as its factorization.

203212123203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 857435201.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 203212123203 its reverse (302321212302), we get a palindrome (505533335505).

The spelling of 203212123203 in words is "two hundred three billion, two hundred twelve million, one hundred twenty-three thousand, two hundred three".