231310032203 has 4 divisors (see below), whose sum is σ = 239286240240. Its totient is φ = 223333824168.

The previous prime is 231310032133. The next prime is 231310032253. The reversal of 231310032203 is 302230013132.

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-231310032203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231310032253) 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, 3988103975 + ... + 3988104032.

It is an arithmetic number, because the mean of its divisors is an integer number (59821560060).

Almost surely, 2^231310032203 is an apocalyptic number.

231310032203 is a deficient number, since it is larger than the sum of its proper divisors (7976208037).

231310032203 is an equidigital number, since it uses as much as digits as its factorization.

231310032203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7976208036.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 231310032203 its reverse (302230013132), we get a palindrome (533540045335).

The spelling of 231310032203 in words is "two hundred thirty-one billion, three hundred ten million, thirty-two thousand, two hundred three".