231033312203 has 4 divisors (see below), whose sum is σ = 231037948128. Its totient is φ = 231028676280.

The previous prime is 231033312143. The next prime is 231033312227. The reversal of 231033312203 is 302213330132.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-231033312203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231033312403) 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, 2242388 + ... + 2343153.

It is an arithmetic number, because the mean of its divisors is an integer number (57759487032).

Almost surely, 2^231033312203 is an apocalyptic number.

231033312203 is a deficient number, since it is larger than the sum of its proper divisors (4635925).

231033312203 is an equidigital number, since it uses as much as digits as its factorization.

231033312203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4635924.

The product of its (nonzero) digits is 1944, while the sum is 23.

Adding to 231033312203 its reverse (302213330132), we get a palindrome (533246642335).

The spelling of 231033312203 in words is "two hundred thirty-one billion, thirty-three million, three hundred twelve thousand, two hundred three".