231310223103 has 4 divisors (see below), whose sum is σ = 308413630808. Its totient is φ = 154206815400.

The previous prime is 231310223099. The next prime is 231310223113. The reversal of 231310223103 is 301322013132.

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

It is not a de Polignac number, because 231310223103 - 2² = 231310223099 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 231310223103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231310223113) 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, 38551703848 + ... + 38551703853.

It is an arithmetic number, because the mean of its divisors is an integer number (77103407702).

Almost surely, 2^231310223103 is an apocalyptic number.

231310223103 is a deficient number, since it is larger than the sum of its proper divisors (77103407705).

231310223103 is an equidigital number, since it uses as much as digits as its factorization.

231310223103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77103407704.

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

Adding to 231310223103 its reverse (301322013132), we get a palindrome (532632236235).

The spelling of 231310223103 in words is "two hundred thirty-one billion, three hundred ten million, two hundred twenty-three thousand, one hundred three".