203112231223 has 16 divisors (see below), whose sum is σ = 226839571200. Its totient is φ = 180266143680.

The previous prime is 203112231191. The next prime is 203112231239. The reversal of 203112231223 is 322132211302.

It is a cyclic number.

It is not a de Polignac number, because 203112231223 - 2⁵ = 203112231191 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 203112231194 and 203112231203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203112231523) 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, 885318 + ... + 1090876.

It is an arithmetic number, because the mean of its divisors is an integer number (14177473200).

Almost surely, 2^203112231223 is an apocalyptic number.

203112231223 is a deficient number, since it is larger than the sum of its proper divisors (23727339977).

203112231223 is a wasteful number, since it uses less digits than its factorization.

203112231223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207702.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 203112231223 its reverse (322132211302), we get a palindrome (525244442525).

The spelling of 203112231223 in words is "two hundred three billion, one hundred twelve million, two hundred thirty-one thousand, two hundred twenty-three".