103231120313 has 4 divisors (see below), whose sum is σ = 103263093540. Its totient is φ = 103199147088.

The previous prime is 103231120219. The next prime is 103231120319. The reversal of 103231120313 is 313021132301.

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

It can be written as a sum of positive squares in 2 ways, for example, as 18170231209 + 85060889104 = 134797^2 + 291652^2 .

It is a cyclic number.

It is not a de Polignac number, because 103231120313 - 2¹⁴ = 103231103929 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (103231120319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15981770 + ... + 15988227.

It is an arithmetic number, because the mean of its divisors is an integer number (25815773385).

Almost surely, 2^103231120313 is an apocalyptic number.

It is an amenable number.

103231120313 is a deficient number, since it is larger than the sum of its proper divisors (31973227).

103231120313 is an equidigital number, since it uses as much as digits as its factorization.

103231120313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31973226.

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

Adding to 103231120313 its reverse (313021132301), we get a palindrome (416252252614).

The spelling of 103231120313 in words is "one hundred three billion, two hundred thirty-one million, one hundred twenty thousand, three hundred thirteen".