231313120103 has 16 divisors (see below), whose sum is σ = 250639704000. Its totient is φ = 213469308000.

The previous prime is 231313120043. The next prime is 231313120139. The reversal of 231313120103 is 301021313132.

It is not a de Polignac number, because 231313120103 - 2⁸ = 231313119847 is a prime.

It is a super-3 number, since 3×231313120103³ (a number of 35 digits) contains 333 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 (231313120183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11851853 + ... + 11871353.

It is an arithmetic number, because the mean of its divisors is an integer number (15664981500).

Almost surely, 2^231313120103 is an apocalyptic number.

231313120103 is a deficient number, since it is larger than the sum of its proper divisors (19326583897).

231313120103 is an equidigital number, since it uses as much as digits as its factorization.

231313120103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24939 (or 24913 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 231313120103 its reverse (301021313132), we get a palindrome (532334433235).

The spelling of 231313120103 in words is "two hundred thirty-one billion, three hundred thirteen million, one hundred twenty thousand, one hundred three".