203231320203 has 8 divisors (see below), whose sum is σ = 274405158400. Its totient is φ = 133772514408.

The previous prime is 203231320181. The next prime is 203231320213. The reversal of 203231320203 is 302023132302.

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

It is not a de Polignac number, because 203231320203 - 2¹² = 203231316107 is a prime.

It is a super-2 number, since 2×203231320203² (a number of 23 digits) contains 22 as substring.

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 203231320203.

It is not an unprimeable number, because it can be changed into a prime (203231320213) 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, 428757823 + ... + 428758296.

It is an arithmetic number, because the mean of its divisors is an integer number (34300644800).

Almost surely, 2^203231320203 is an apocalyptic number.

203231320203 is a deficient number, since it is larger than the sum of its proper divisors (71173838197).

203231320203 is an equidigital number, since it uses as much as digits as its factorization.

203231320203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 857516201.

The product of its (nonzero) digits is 1296, while the sum is 21.

Adding to 203231320203 its reverse (302023132302), we get a palindrome (505254452505).

The spelling of 203231320203 in words is "two hundred three billion, two hundred thirty-one million, three hundred twenty thousand, two hundred three".