203123102231 has 8 divisors (see below), whose sum is σ = 235605475200. Its totient is φ = 171506926008.

The previous prime is 203123102227. The next prime is 203123102249. The reversal of 203123102231 is 132201321302.

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

It is a cyclic number.

It is not a de Polignac number, because 203123102231 - 2² = 203123102227 is a prime.

It is a super-2 number, since 2×203123102231² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203123102261) 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, 216548681 + ... + 216549618.

It is an arithmetic number, because the mean of its divisors is an integer number (29450684400).

Almost surely, 2^203123102231 is an apocalyptic number.

203123102231 is a deficient number, since it is larger than the sum of its proper divisors (32482372969).

203123102231 is an equidigital number, since it uses as much as digits as its factorization.

203123102231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433098373.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 203123102231 its reverse (132201321302), we get a palindrome (335324423533).

The spelling of 203123102231 in words is "two hundred three billion, one hundred twenty-three million, one hundred two thousand, two hundred thirty-one".