231130231203 has 4 divisors (see below), whose sum is σ = 308173641608. Its totient is φ = 154086820800.

The previous prime is 231130231187. The next prime is 231130231207. The reversal of 231130231203 is 302132031132.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 231130231203 - 2⁴ = 231130231187 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 231130231203.

It is not an unprimeable number, because it can be changed into a prime (231130231207) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38521705198 + ... + 38521705203.

It is an arithmetic number, because the mean of its divisors is an integer number (77043410402).

Almost surely, 2^231130231203 is an apocalyptic number.

231130231203 is a deficient number, since it is larger than the sum of its proper divisors (77043410405).

231130231203 is an equidigital number, since it uses as much as digits as its factorization.

231130231203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77043410404.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 231130231203 its reverse (302132031132), we get a palindrome (533262262335).

The spelling of 231130231203 in words is "two hundred thirty-one billion, one hundred thirty million, two hundred thirty-one thousand, two hundred three".