203112300020203 has 16 divisors (see below), whose sum is σ = 236508762249216. Its totient is φ = 170810960392800.

The previous prime is 203112300020183. The next prime is 203112300020219. The reversal of 203112300020203 is 302020003211302.

It is not a de Polignac number, because 203112300020203 - 2⁵ = 203112300020171 is a prime.

It is a super-2 number, since 2×203112300020203² (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 (203112300020293) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 271548378 + ... + 272295328.

It is an arithmetic number, because the mean of its divisors is an integer number (14781797640576).

Almost surely, 2^{203112300020203} is an apocalyptic number.

203112300020203 is a deficient number, since it is larger than the sum of its proper divisors (33396462229013).

203112300020203 is an equidigital number, since it uses as much as digits as its factorization.

203112300020203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1479954.

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

Adding to 203112300020203 its reverse (302020003211302), we get a palindrome (505132303231505).

The spelling of 203112300020203 in words is "two hundred three trillion, one hundred twelve billion, three hundred million, twenty thousand, two hundred three".